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Finding the Third Proportional to 20,902,187 and 28,883,021

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Solution

The third proportional to 20,902,187 and 28,883,021 is: 39,911,082.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,902,187 : 28,883,021 = 28,883,021 : x
  2. Step 2: Convert to fraction form
    20,902,187/28,883,021 = 28,883,021/x
  3. Step 3: Cross multiply
    20,902,187x = 28,883,021 × 28,883,021
  4. Step 4: Simplify right side
    20,902,187x = 834,228,902,086,441
  5. Step 5: Solve for x
    x = 834,228,902,086,441/20,902,187
  6. Step 6: Final answer
    x = 39,911,082.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.