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Finding the Fourth Proportional to 242,563,758.60, 363,845,637.90 and 145,469,487.90

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Solution

The fourth proportional to 242,563,758.60, 363,845,637.90 and 145,469,487.90 is: 218,204,231.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,563,758.60 : 363,845,637.90 = 145,469,487.90 : x
  2. Step 2: Convert to fraction form
    242,563,758.60/363,845,637.90 = 145,469,487.90/x
  3. Step 3: Cross multiply
    242,563,758.60x = 363,845,637.90 × 145,469,487.90
  4. Step 4: Simplify right side
    242,563,758.60x = 52,928,438,619,961,832
  5. Step 5: Solve for x
    x = 52,928,438,619,961,832/242,563,758.60
  6. Step 6: Final answer
    x = 218,204,231.85

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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.