Finding the Fourth Proportional to 523,436,723.17, 722,340,495.19 and 288,486,822.91
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Solution
The fourth proportional to 523,436,723.17, 722,340,495.19 and 288,486,822.91 is: 398,110,612.60
Step by Step Solution
- Step 1: Write the proportion equation
523,436,723.17 : 722,340,495.19 = 288,486,822.91 : x - Step 2: Convert to fraction form
523,436,723.17/722,340,495.19 = 288,486,822.91/x - Step 3: Cross multiply
523,436,723.17x = 722,340,495.19 × 288,486,822.91 - Step 4: Simplify right side
523,436,723.17x = 208,385,714,516,599,264 - Step 5: Solve for x
x = 208,385,714,516,599,264/523,436,723.17 - Step 6: Final answer
x = 398,110,612.60
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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.