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Finding the Fourth Proportional to 202,136,336.70, 303,204,505.05 and 72,748,167.90

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Solution

The fourth proportional to 202,136,336.70, 303,204,505.05 and 72,748,167.90 is: 109,122,251.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,136,336.70 : 303,204,505.05 = 72,748,167.90 : x
  2. Step 2: Convert to fraction form
    202,136,336.70/303,204,505.05 = 72,748,167.90/x
  3. Step 3: Cross multiply
    202,136,336.70x = 303,204,505.05 × 72,748,167.90
  4. Step 4: Simplify right side
    202,136,336.70x = 22,057,572,241,413,800
  5. Step 5: Solve for x
    x = 22,057,572,241,413,800/202,136,336.70
  6. Step 6: Final answer
    x = 109,122,251.85

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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.