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Finding the Third Proportional to 8,478,940 and 18,394,193

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Solution

The third proportional to 8,478,940 and 18,394,193 is: 39,904,320.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,478,940 : 18,394,193 = 18,394,193 : x
  2. Step 2: Convert to fraction form
    8,478,940/18,394,193 = 18,394,193/x
  3. Step 3: Cross multiply
    8,478,940x = 18,394,193 × 18,394,193
  4. Step 4: Simplify right side
    8,478,940x = 338,346,336,121,249
  5. Step 5: Solve for x
    x = 338,346,336,121,249/8,478,940
  6. Step 6: Final answer
    x = 39,904,320.13

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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.