What is 1.0E-21 percent of 7400000000 - 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 7400000000 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 7400000000 is 100%, so we can write it down as 7400000000=100%.
4. We know, that x is 1.0E-21% of the output value, so we can write it down as x=1.0E-21%.
5. Now we have two simple equations:
1) 7400000000=100%
2) x=1.0E-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:
7400000000/x=100%/1.0E-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 1.0E-21% of 7400000000

7400000000/x=100/1.0E-21
(7400000000/x)*x=(100/1.0E-21)*x       - we multiply both sides of the equation by x
7400000000=1.0E+23*x       - we divide both sides of the equation by (1.0E+23) to get x
7400000000/1.0E+23=x
7.4E-14=x
x=7.4E-14

now we have:
1.0E-21% of 7400000000=7.4E-14