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Finding the Third Proportional to 71,247,699 and 155,613,018

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Solution

The third proportional to 71,247,699 and 155,613,018 is: 339,876,398.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,247,699 : 155,613,018 = 155,613,018 : x
  2. Step 2: Convert to fraction form
    71,247,699/155,613,018 = 155,613,018/x
  3. Step 3: Cross multiply
    71,247,699x = 155,613,018 × 155,613,018
  4. Step 4: Simplify right side
    71,247,699x = 24,215,411,371,068,324
  5. Step 5: Solve for x
    x = 24,215,411,371,068,324/71,247,699
  6. Step 6: Final answer
    x = 339,876,398.97

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.