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Finding the Third Proportional to 20,886,722 and 31,930,419

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Solution

The third proportional to 20,886,722 and 31,930,419 is: 48,813,387.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,886,722 : 31,930,419 = 31,930,419 : x
  2. Step 2: Convert to fraction form
    20,886,722/31,930,419 = 31,930,419/x
  3. Step 3: Cross multiply
    20,886,722x = 31,930,419 × 31,930,419
  4. Step 4: Simplify right side
    20,886,722x = 1,019,551,657,515,561
  5. Step 5: Solve for x
    x = 1,019,551,657,515,561/20,886,722
  6. Step 6: Final answer
    x = 48,813,387.64

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.