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Finding the Third Proportional to 3,899,839.50 and 8,695,872

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Solution

The third proportional to 3,899,839.50 and 8,695,872 is: 19,390,077.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,899,839.50 : 8,695,872 = 8,695,872 : x
  2. Step 2: Convert to fraction form
    3,899,839.50/8,695,872 = 8,695,872/x
  3. Step 3: Cross multiply
    3,899,839.50x = 8,695,872 × 8,695,872
  4. Step 4: Simplify right side
    3,899,839.50x = 75,618,189,840,384
  5. Step 5: Solve for x
    x = 75,618,189,840,384/3,899,839.50
  6. Step 6: Final answer
    x = 19,390,077.42

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Why These Related Problems?

These problems maintain the same ratio (2.23) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.