Finding the Fourth Proportional to 936,888,629.23, 1,292,920,447.94 and 513,498,902.95
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Solution
The fourth proportional to 936,888,629.23, 1,292,920,447.94 and 513,498,902.95 is: 708,636,235.84
Step by Step Solution
- Step 1: Write the proportion equation
936,888,629.23 : 1,292,920,447.94 = 513,498,902.95 : x - Step 2: Convert to fraction form
936,888,629.23/1,292,920,447.94 = 513,498,902.95/x - Step 3: Cross multiply
936,888,629.23x = 1,292,920,447.94 × 513,498,902.95 - Step 4: Simplify right side
936,888,629.23x = 663,913,231,618,812,544 - Step 5: Solve for x
x = 663,913,231,618,812,544/936,888,629.23 - Step 6: Final answer
x = 708,636,235.84
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.