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Finding the Third Proportional to 3,997,711 and 8,792,408

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Solution

The third proportional to 3,997,711 and 8,792,408 is: 19,337,675.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,997,711 : 8,792,408 = 8,792,408 : x
  2. Step 2: Convert to fraction form
    3,997,711/8,792,408 = 8,792,408/x
  3. Step 3: Cross multiply
    3,997,711x = 8,792,408 × 8,792,408
  4. Step 4: Simplify right side
    3,997,711x = 77,306,438,438,464
  5. Step 5: Solve for x
    x = 77,306,438,438,464/3,997,711
  6. Step 6: Final answer
    x = 19,337,675.59

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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.