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Finding the Third Proportional to 81,817,558 and 176,613,872

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Solution

The third proportional to 81,817,558 and 176,613,872 is: 381,244,081.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,817,558 : 176,613,872 = 176,613,872 : x
  2. Step 2: Convert to fraction form
    81,817,558/176,613,872 = 176,613,872/x
  3. Step 3: Cross multiply
    81,817,558x = 176,613,872 × 176,613,872
  4. Step 4: Simplify right side
    81,817,558x = 31,192,459,782,832,384
  5. Step 5: Solve for x
    x = 31,192,459,782,832,384/81,817,558
  6. Step 6: Final answer
    x = 381,244,081.90

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.