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Finding the Third Proportional to 20,557,278 and 28,923,561

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Solution

The third proportional to 20,557,278 and 28,923,561 is: 40,694,705.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,557,278 : 28,923,561 = 28,923,561 : x
  2. Step 2: Convert to fraction form
    20,557,278/28,923,561 = 28,923,561/x
  3. Step 3: Cross multiply
    20,557,278x = 28,923,561 × 28,923,561
  4. Step 4: Simplify right side
    20,557,278x = 836,572,380,920,721
  5. Step 5: Solve for x
    x = 836,572,380,920,721/20,557,278
  6. Step 6: Final answer
    x = 40,694,705.83

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Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.