What is 6.428571E-5 percent of 7 - 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 7 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 7 is 100%, so we can write it down as 7=100%.
4. We know, that x is 6.428571E-5% of the output value, so we can write it down as x=6.428571E-5%.
5. Now we have two simple equations:
1) 7=100%
2) x=6.428571E-5%
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:
7/x=100%/6.428571E-5%
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 6.428571E-5% of 7

7/x=100/6.428571E-5
(7/x)*x=(100/6.428571E-5)*x       - we multiply both sides of the equation by x
7=1555555.6592593*x       - we divide both sides of the equation by (1555555.6592593) to get x
7/1555555.6592593=x
4.4999997E-6=x
x=4.4999997E-6

now we have:
6.428571E-5% of 7=4.4999997E-6