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Finding the Third Proportional to 8,387,466 and 18,344,940

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Solution

The third proportional to 8,387,466 and 18,344,940 is: 40,123,777.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,387,466 : 18,344,940 = 18,344,940 : x
  2. Step 2: Convert to fraction form
    8,387,466/18,344,940 = 18,344,940/x
  3. Step 3: Cross multiply
    8,387,466x = 18,344,940 × 18,344,940
  4. Step 4: Simplify right side
    8,387,466x = 336,536,823,603,600
  5. Step 5: Solve for x
    x = 336,536,823,603,600/8,387,466
  6. Step 6: Final answer
    x = 40,123,777.98

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.