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Finding the Third Proportional to 8,731,381 and 18,367,662

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Solution

The third proportional to 8,731,381 and 18,367,662 is: 38,638,905.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,731,381 : 18,367,662 = 18,367,662 : x
  2. Step 2: Convert to fraction form
    8,731,381/18,367,662 = 18,367,662/x
  3. Step 3: Cross multiply
    8,731,381x = 18,367,662 × 18,367,662
  4. Step 4: Simplify right side
    8,731,381x = 337,371,007,346,244
  5. Step 5: Solve for x
    x = 337,371,007,346,244/8,731,381
  6. Step 6: Final answer
    x = 38,638,905.73

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Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.