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Finding the Fourth Proportional to 543,812,761.68, 815,718,404.07 and 252,520,600.02

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Solution

The fourth proportional to 543,812,761.68, 815,718,404.07 and 252,520,600.02 is: 378,780,557.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,812,761.68 : 815,718,404.07 = 252,520,600.02 : x
  2. Step 2: Convert to fraction form
    543,812,761.68/815,718,404.07 = 252,520,600.02/x
  3. Step 3: Cross multiply
    543,812,761.68x = 815,718,404.07 × 252,520,600.02
  4. Step 4: Simplify right side
    543,812,761.68x = 205,985,700,843,113,248
  5. Step 5: Solve for x
    x = 205,985,700,843,113,248/543,812,761.68
  6. Step 6: Final answer
    x = 378,780,557.13

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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.