Finding the Fourth Proportional to 936,888,616.93, 1,292,920,431.03 and 513,498,890.68
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Solution
The fourth proportional to 936,888,616.93, 1,292,920,431.03 and 513,498,890.68 is: 708,636,218.94
Step by Step Solution
- Step 1: Write the proportion equation
936,888,616.93 : 1,292,920,431.03 = 513,498,890.68 : x - Step 2: Convert to fraction form
936,888,616.93/1,292,920,431.03 = 513,498,890.68/x - Step 3: Cross multiply
936,888,616.93x = 1,292,920,431.03 × 513,498,890.68 - Step 4: Simplify right side
936,888,616.93x = 663,913,207,068,205,952 - Step 5: Solve for x
x = 663,913,207,068,205,952/936,888,616.93 - Step 6: Final answer
x = 708,636,218.94
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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.