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Finding the Third Proportional to 20,418,822 and 31,632,129

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Solution

The third proportional to 20,418,822 and 31,632,129 is: 49,003,394.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,418,822 : 31,632,129 = 31,632,129 : x
  2. Step 2: Convert to fraction form
    20,418,822/31,632,129 = 31,632,129/x
  3. Step 3: Cross multiply
    20,418,822x = 31,632,129 × 31,632,129
  4. Step 4: Simplify right side
    20,418,822x = 1,000,591,585,072,641
  5. Step 5: Solve for x
    x = 1,000,591,585,072,641/20,418,822
  6. Step 6: Final answer
    x = 49,003,394.27

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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.