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Finding the Third Proportional to 12,363,642 and 18,912,615

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Solution

The third proportional to 12,363,642 and 18,912,615 is: 28,930,553.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,363,642 : 18,912,615 = 18,912,615 : x
  2. Step 2: Convert to fraction form
    12,363,642/18,912,615 = 18,912,615/x
  3. Step 3: Cross multiply
    12,363,642x = 18,912,615 × 18,912,615
  4. Step 4: Simplify right side
    12,363,642x = 357,687,006,138,225
  5. Step 5: Solve for x
    x = 357,687,006,138,225/12,363,642
  6. Step 6: Final answer
    x = 28,930,553.48

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.