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Finding the Third Proportional to 20,123,540 and 28,447,292

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Solution

The third proportional to 20,123,540 and 28,447,292 is: 40,214,019.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,123,540 : 28,447,292 = 28,447,292 : x
  2. Step 2: Convert to fraction form
    20,123,540/28,447,292 = 28,447,292/x
  3. Step 3: Cross multiply
    20,123,540x = 28,447,292 × 28,447,292
  4. Step 4: Simplify right side
    20,123,540x = 809,248,422,133,264
  5. Step 5: Solve for x
    x = 809,248,422,133,264/20,123,540
  6. Step 6: Final answer
    x = 40,214,019.11

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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.