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Finding the Third Proportional to 3,970,722.38 and 8,418,223.13

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Solution

The third proportional to 3,970,722.38 and 8,418,223.13 is: 17,847,251.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,970,722.38 : 8,418,223.13 = 8,418,223.13 : x
  2. Step 2: Convert to fraction form
    3,970,722.38/8,418,223.13 = 8,418,223.13/x
  3. Step 3: Cross multiply
    3,970,722.38x = 8,418,223.13 × 8,418,223.13
  4. Step 4: Simplify right side
    3,970,722.38x = 70,866,480,582,284.77
  5. Step 5: Solve for x
    x = 70,866,480,582,284.77/3,970,722.38
  6. Step 6: Final answer
    x = 17,847,251.43

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.