What is 2500000000 percent of 1.2E-6 - 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 1.2E-6 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 1.2E-6 is 100%, so we can write it down as 1.2E-6=100%.
4. We know, that x is 2500000000% of the output value, so we can write it down as x=2500000000%.
5. Now we have two simple equations:
1) 1.2E-6=100%
2) x=2500000000%
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:
1.2E-6/x=100%/2500000000%
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 2500000000% of 1.2E-6

1.2E-6/x=100/2500000000
(1.2E-6/x)*x=(100/2500000000)*x       - we multiply both sides of the equation by x
1.2E-6=4.0E-8*x       - we divide both sides of the equation by (4.0E-8) to get x
1.2E-6/4.0E-8=x
30=x
x=30

now we have:
2500000000% of 1.2E-6=30