Ahhh excellent, thank you guys so much! That math is soo much easier.
Now, lets say I wanted to bring that 90ml of 8mg strength up to 12, I have 60mg base liquid, how much do I need to add to the 8 to get it to 12?
You guys are awesome,
Milligrams per Milliliters is the Ratio of Total Milligrams divided by Total Milliliters.
ie: (Total mg) / (Total ml) = mg/ml
Let's call "X" the Amount in ml you will add of the 60mg/ml to your existing 8mg/ml
e-liquid.
So the Total Nicotine of what we will add will be 60mg times X. Or just 60X of Total Nicotine.
And, 90ml of 8mg/ml = 720mg of Total Nicotine.
Now lets plug this into our Total Milligrams divided by Total Milliliters formula.
=>
(720 mg + 60X mg) / (90ml + X) = 12mg/ml
We can drop the mg's and ml's because they are just telling us what each value represent. And we are Solving for X which represents the amount of ml's of 60mg/ml to be added.
=>
(720 + 60X) / (90 + X) = 12
Now lets Multiple both side by (90 + X) to get ride of that Pesky Fraction.
=>
(720 + 60X) = 12(90 + X)
Now lets Slam Out some terms on the Right Hand side and Drop the Parentheses.
=>
720 + 60X = 1080 + 12X
Now lets Collect everyone who is alike and put them on one side of the Equal Sign
=>
60X - 12X = 1080 - 720
Now Turn the Wrench.
=>
48X = 360
Turn the Wrench again.
=>
X = 360 / 48
Once More
=>
X = 7.5
So it sounds like we need to Add 7.5ml of 60mg/ml to 90ml of 8mg/ml to Obtain 97.5ml of 12mg/ml.
Cool. It's Miller Time! Done Right?
No.
Always Double Check.
Plugging things back into out mg/ml Formula ...
((90 x 8) + (7.5 x 60)) / (90 + 7.5) = 12
1170 / 97.5 = 12
And Bingo. It Jives!
---
So when doing one of these How Much should Add problems, the Key is understanding that mg/ml = Total Nicotine / Total Milliliters.
Something that I Think would be Easier for people to Visualize if we wrote everything as Bla Bla mg/ml. Instead of Bla Bla mg.
BTW - Someone should Check my Typing/Math. Because I wrote this while only on 1 Cup of Coffee.
