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Finding the Third Proportional to 3,940,422 and 8,509,548

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Solution

The third proportional to 3,940,422 and 8,509,548 is: 18,376,815.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,940,422 : 8,509,548 = 8,509,548 : x
  2. Step 2: Convert to fraction form
    3,940,422/8,509,548 = 8,509,548/x
  3. Step 3: Cross multiply
    3,940,422x = 8,509,548 × 8,509,548
  4. Step 4: Simplify right side
    3,940,422x = 72,412,407,164,304
  5. Step 5: Solve for x
    x = 72,412,407,164,304/3,940,422
  6. Step 6: Final answer
    x = 18,376,815.27

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.