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Finding the Third Proportional to 18,512,022 and 39,868,830

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Solution

The third proportional to 18,512,022 and 39,868,830 is: 85,864,396.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,512,022 : 39,868,830 = 39,868,830 : x
  2. Step 2: Convert to fraction form
    18,512,022/39,868,830 = 39,868,830/x
  3. Step 3: Cross multiply
    18,512,022x = 39,868,830 × 39,868,830
  4. Step 4: Simplify right side
    18,512,022x = 1,589,523,605,568,900
  5. Step 5: Solve for x
    x = 1,589,523,605,568,900/18,512,022
  6. Step 6: Final answer
    x = 85,864,396.96

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.