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Finding the Third Proportional to 13,438,689 and 20,752,115

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Solution

The third proportional to 13,438,689 and 20,752,115 is: 32,045,557.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,438,689 : 20,752,115 = 20,752,115 : x
  2. Step 2: Convert to fraction form
    13,438,689/20,752,115 = 20,752,115/x
  3. Step 3: Cross multiply
    13,438,689x = 20,752,115 × 20,752,115
  4. Step 4: Simplify right side
    13,438,689x = 430,650,276,973,225
  5. Step 5: Solve for x
    x = 430,650,276,973,225/13,438,689
  6. Step 6: Final answer
    x = 32,045,557.19

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.