3000000000 is what percent of 8.0E+18 - 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 8.0E+18 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 8.0E+18, so we can write it down as 100%=8.0E+18.
4. We know, that x% equals 3000000000 of the output value, so we can write it down as x%=3000000000.
5. Now we have two simple equations:
1) 100%=8.0E+18
2) x%=3000000000
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%=8.0E+18/3000000000
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for 3000000000 is what percent of 8.0E+18

100%/x%=8.0E+18/3000000000
(100/x)*x=(8.0E+18/3000000000)*x       - we multiply both sides of the equation by x
100=2666666666.6667*x       - we divide both sides of the equation by (2666666666.6667) to get x
100/2666666666.6667=x
3.75E-8=x
x=3.75E-8

now we have:
3000000000 is 3.75E-8% of 8.0E+18