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Finding the Third Proportional to 8,449,972 and 18,246,955

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Solution

The third proportional to 8,449,972 and 18,246,955 is: 39,402,659.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,449,972 : 18,246,955 = 18,246,955 : x
  2. Step 2: Convert to fraction form
    8,449,972/18,246,955 = 18,246,955/x
  3. Step 3: Cross multiply
    8,449,972x = 18,246,955 × 18,246,955
  4. Step 4: Simplify right side
    8,449,972x = 332,951,366,772,025
  5. Step 5: Solve for x
    x = 332,951,366,772,025/8,449,972
  6. Step 6: Final answer
    x = 39,402,659.18

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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.