Finding the Fourth Proportional to 272,403,992,139.20, 408,605,988,208.80 and 272,403,992,139.20
Calculator
Solution
The fourth proportional to 272,403,992,139.20, 408,605,988,208.80 and 272,403,992,139.20 is: 408,605,988,208.80
Step by Step Solution
- Step 1: Write the proportion equation
272,403,992,139.20 : 408,605,988,208.80 = 272,403,992,139.20 : x - Step 2: Convert to fraction form
272,403,992,139.20/408,605,988,208.80 = 272,403,992,139.20/x - Step 3: Cross multiply
272,403,992,139.20x = 408,605,988,208.80 × 272,403,992,139.20 - Step 4: Simplify right side
272,403,992,139.20x = 111,305,902,400,059,998,208,000 - Step 5: Solve for x
x = 111,305,902,400,059,998,208,000/272,403,992,139.20 - Step 6: Final answer
x = 408,605,988,208.80
Related Problems
Find fourth proportional to 136,201,996,069.60, 204,302,994,104.40 and 136,201,996,069.60
Half scale
Find fourth proportional to 544,807,984,278.40, 817,211,976,417.60 and 544,807,984,278.40
Double scale
Find fourth proportional to 272,403,992,140.20, 408,605,988,210.30 and 272,403,992,140.20
Similar ratio
Find fourth proportional to 408,605,988,208.80, 612,908,982,313.20 and 408,605,988,208.80
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.