478.4 is what percent of 318900000 - 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 318900000 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 318900000, so we can write it down as 100%=318900000.
4. We know, that x% equals 478.4 of the output value, so we can write it down as x%=478.4.
5. Now we have two simple equations:
1) 100%=318900000
2) x%=478.4
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%=318900000/478.4
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for 478.4 is what percent of 318900000

100%/x%=318900000/478.4
(100/x)*x=(318900000/478.4)*x       - we multiply both sides of the equation by x
100=666596.98996656*x       - we divide both sides of the equation by (666596.98996656) to get x
100/666596.98996656=x
0.00015001567889621=x
x=0.00015001567889621

now we have:
478.4 is 0.00015001567889621% of 318900000