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Finding the Third Proportional to 8,172,658.50 and 17,939,397

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Solution

The third proportional to 8,172,658.50 and 17,939,397 is: 39,377,879.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,172,658.50 : 17,939,397 = 17,939,397 : x
  2. Step 2: Convert to fraction form
    8,172,658.50/17,939,397 = 17,939,397/x
  3. Step 3: Cross multiply
    8,172,658.50x = 17,939,397 × 17,939,397
  4. Step 4: Simplify right side
    8,172,658.50x = 321,821,964,723,609
  5. Step 5: Solve for x
    x = 321,821,964,723,609/8,172,658.50
  6. Step 6: Final answer
    x = 39,377,879.88

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.