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Finding the Third Proportional to 18,982,938 and 40,656,120

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Solution

The third proportional to 18,982,938 and 40,656,120 is: 87,073,986.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,982,938 : 40,656,120 = 40,656,120 : x
  2. Step 2: Convert to fraction form
    18,982,938/40,656,120 = 40,656,120/x
  3. Step 3: Cross multiply
    18,982,938x = 40,656,120 × 40,656,120
  4. Step 4: Simplify right side
    18,982,938x = 1,652,920,093,454,400
  5. Step 5: Solve for x
    x = 1,652,920,093,454,400/18,982,938
  6. Step 6: Final answer
    x = 87,073,986.83

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.