What is 8.0E+21 percent of 1.0E-12 - 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 1.0E-12 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 1.0E-12 is 100%, so we can write it down as 1.0E-12=100%.
4. We know, that x is 8.0E+21% of the output value, so we can write it down as x=8.0E+21%.
5. Now we have two simple equations:
1) 1.0E-12=100%
2) x=8.0E+21%
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:
1.0E-12/x=100%/8.0E+21%
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 8.0E+21% of 1.0E-12

1.0E-12/x=100/8.0E+21
(1.0E-12/x)*x=(100/8.0E+21)*x       - we multiply both sides of the equation by x
1.0E-12=1.25E-20*x       - we divide both sides of the equation by (1.25E-20) to get x
1.0E-12/1.25E-20=x
80000000=x
x=80000000

now we have:
8.0E+21% of 1.0E-12=80000000