What is 0.00012 percent of 331000000 - step by step solution

To get the solution, we are looking for, we need to point out what we know.

1. We assume, that the number 331000000 is 100% - because it's the output value of the task.
2. We assume, that x is the value we are looking for.
3. If 331000000 is 100%, so we can write it down as 331000000=100%.
4. We know, that x is 0.00012% of the output value, so we can write it down as x=0.00012%.
5. Now we have two simple equations:
1) 331000000=100%
2) x=0.00012%
where left sides of both of them have the same units, and both right sides have the same units, so we can do something like that:
331000000/x=100%/0.00012%
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for what is 0.00012% of 331000000

331000000/x=100/0.00012
(331000000/x)*x=(100/0.00012)*x       - we multiply both sides of the equation by x
331000000=833333.33333333*x       - we divide both sides of the equation by (833333.33333333) to get x
331000000/833333.33333333=x
397.2=x
x=397.2

now we have:
0.00012% of 331000000=397.2