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Finding the Third Proportional to 20,193,540 and 31,327,440

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Solution

The third proportional to 20,193,540 and 31,327,440 is: 48,600,121.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,193,540 : 31,327,440 = 31,327,440 : x
  2. Step 2: Convert to fraction form
    20,193,540/31,327,440 = 31,327,440/x
  3. Step 3: Cross multiply
    20,193,540x = 31,327,440 × 31,327,440
  4. Step 4: Simplify right side
    20,193,540x = 981,408,496,953,600
  5. Step 5: Solve for x
    x = 981,408,496,953,600/20,193,540
  6. Step 6: Final answer
    x = 48,600,121.47

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.