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Finding the Third Proportional to 20,193,472 and 31,327,328

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Solution

The third proportional to 20,193,472 and 31,327,328 is: 48,599,937.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,193,472 : 31,327,328 = 31,327,328 : x
  2. Step 2: Convert to fraction form
    20,193,472/31,327,328 = 31,327,328/x
  3. Step 3: Cross multiply
    20,193,472x = 31,327,328 × 31,327,328
  4. Step 4: Simplify right side
    20,193,472x = 981,401,479,619,584
  5. Step 5: Solve for x
    x = 981,401,479,619,584/20,193,472
  6. Step 6: Final answer
    x = 48,599,937.62

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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.