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Finding the Third Proportional to 4,218,864 and 8,736,792

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Solution

The third proportional to 4,218,864 and 8,736,792 is: 18,092,911.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,218,864 : 8,736,792 = 8,736,792 : x
  2. Step 2: Convert to fraction form
    4,218,864/8,736,792 = 8,736,792/x
  3. Step 3: Cross multiply
    4,218,864x = 8,736,792 × 8,736,792
  4. Step 4: Simplify right side
    4,218,864x = 76,331,534,451,264
  5. Step 5: Solve for x
    x = 76,331,534,451,264/4,218,864
  6. Step 6: Final answer
    x = 18,092,911.85

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Why These Related Problems?

These problems maintain the same ratio (2.07) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.