Answer:
The largest of the three number is

And smallest number number is

and it is 2000 times greater than smaller number.
Explanation:
Given: The three numbers expressed in scientific notation.
1)

2)

3)

We have to find the greatest number and by how many times is it greater than the smallest number.
Consider the given numbers
1)
is same as 0.0082
2)
is same as 0.0000052
3)
is same as 0.0000041
So the largest of the three number is 0.0082
And smallest number number is 0.0000041
The Ratio of greatest number to smallest number is

Thus, greater number is 2000 times greater than smaller number.