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Finding the Third Proportional to 3,842,785 and 8,279,381

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Solution

The third proportional to 3,842,785 and 8,279,381 is: 17,838,143.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,842,785 : 8,279,381 = 8,279,381 : x
  2. Step 2: Convert to fraction form
    3,842,785/8,279,381 = 8,279,381/x
  3. Step 3: Cross multiply
    3,842,785x = 8,279,381 × 8,279,381
  4. Step 4: Simplify right side
    3,842,785x = 68,548,149,743,161
  5. Step 5: Solve for x
    x = 68,548,149,743,161/3,842,785
  6. Step 6: Final answer
    x = 17,838,143.36

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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.