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Finding the Third Proportional to 3,988,017 and 8,697,825

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Solution

The third proportional to 3,988,017 and 8,697,825 is: 18,969,868.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,988,017 : 8,697,825 = 8,697,825 : x
  2. Step 2: Convert to fraction form
    3,988,017/8,697,825 = 8,697,825/x
  3. Step 3: Cross multiply
    3,988,017x = 8,697,825 × 8,697,825
  4. Step 4: Simplify right side
    3,988,017x = 75,652,159,730,625
  5. Step 5: Solve for x
    x = 75,652,159,730,625/3,988,017
  6. Step 6: Final answer
    x = 18,969,868.92

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.