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Finding the Third Proportional to 20,123,964 and 31,381,688

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Solution

The third proportional to 20,123,964 and 31,381,688 is: 48,937,194.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,123,964 : 31,381,688 = 31,381,688 : x
  2. Step 2: Convert to fraction form
    20,123,964/31,381,688 = 31,381,688/x
  3. Step 3: Cross multiply
    20,123,964x = 31,381,688 × 31,381,688
  4. Step 4: Simplify right side
    20,123,964x = 984,810,341,729,344
  5. Step 5: Solve for x
    x = 984,810,341,729,344/20,123,964
  6. Step 6: Final answer
    x = 48,937,194.57

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.