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Finding the Third Proportional to 71,645,939 and 155,455,972

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Solution

The third proportional to 71,645,939 and 155,455,972 is: 337,305,359.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,645,939 : 155,455,972 = 155,455,972 : x
  2. Step 2: Convert to fraction form
    71,645,939/155,455,972 = 155,455,972/x
  3. Step 3: Cross multiply
    71,645,939x = 155,455,972 × 155,455,972
  4. Step 4: Simplify right side
    71,645,939x = 24,166,559,230,464,784
  5. Step 5: Solve for x
    x = 24,166,559,230,464,784/71,645,939
  6. Step 6: Final answer
    x = 337,305,359.77

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.