Finding the Fourth Proportional to 726,740,346.80, 1,090,110,520.20 and 358,451,733.80
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Solution
The fourth proportional to 726,740,346.80, 1,090,110,520.20 and 358,451,733.80 is: 537,677,600.70
Step by Step Solution
- Step 1: Write the proportion equation
726,740,346.80 : 1,090,110,520.20 = 358,451,733.80 : x - Step 2: Convert to fraction form
726,740,346.80/1,090,110,520.20 = 358,451,733.80/x - Step 3: Cross multiply
726,740,346.80x = 1,090,110,520.20 × 358,451,733.80 - Step 4: Simplify right side
726,740,346.80x = 390,752,005,999,309,952 - Step 5: Solve for x
x = 390,752,005,999,309,952/726,740,346.80 - Step 6: Final answer
x = 537,677,600.70
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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.