Home / 218,723,963.75-327,278,819.20-131,338,699.78

Finding the Fourth Proportional to 218,723,963.75, 327,278,819.20 and 131,338,699.78

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Solution

The fourth proportional to 218,723,963.75, 327,278,819.20 and 131,338,699.78 is: 196,523,388.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,723,963.75 : 327,278,819.20 = 131,338,699.78 : x
  2. Step 2: Convert to fraction form
    218,723,963.75/327,278,819.20 = 131,338,699.78/x
  3. Step 3: Cross multiply
    218,723,963.75x = 327,278,819.20 × 131,338,699.78
  4. Step 4: Simplify right side
    218,723,963.75x = 42,984,374,578,977,352
  5. Step 5: Solve for x
    x = 42,984,374,578,977,352/218,723,963.75
  6. Step 6: Final answer
    x = 196,523,388.85

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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.