20 is what percent of 319000000 - 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 319000000 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 100% equals 319000000, so we can write it down as 100%=319000000.
4. We know, that x% equals 20 of the output value, so we can write it down as x%=20.
5. Now we have two simple equations:
1) 100%=319000000
2) x%=20
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:
100%/x%=319000000/20
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for 20 is what percent of 319000000

100%/x%=319000000/20
(100/x)*x=(319000000/20)*x       - we multiply both sides of the equation by x
100=15950000*x       - we divide both sides of the equation by (15950000) to get x
100/15950000=x
6.269592476489E-6=x
x=6.269592476489E-6

now we have:
20 is 6.269592476489E-6% of 319000000