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Finding the Fourth Proportional to 543,812,762.18, 815,718,404.82 and 252,520,600.52

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Solution

The fourth proportional to 543,812,762.18, 815,718,404.82 and 252,520,600.52 is: 378,780,557.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,812,762.18 : 815,718,404.82 = 252,520,600.52 : x
  2. Step 2: Convert to fraction form
    543,812,762.18/815,718,404.82 = 252,520,600.52/x
  3. Step 3: Cross multiply
    543,812,762.18x = 815,718,404.82 × 252,520,600.52
  4. Step 4: Simplify right side
    543,812,762.18x = 205,985,701,440,362,880
  5. Step 5: Solve for x
    x = 205,985,701,440,362,880/543,812,762.18
  6. Step 6: Final answer
    x = 378,780,557.88

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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.