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Finding the Third Proportional to 12,472,854 and 18,658,422

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Solution

The third proportional to 12,472,854 and 18,658,422 is: 27,911,551.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,472,854 : 18,658,422 = 18,658,422 : x
  2. Step 2: Convert to fraction form
    12,472,854/18,658,422 = 18,658,422/x
  3. Step 3: Cross multiply
    12,472,854x = 18,658,422 × 18,658,422
  4. Step 4: Simplify right side
    12,472,854x = 348,136,711,530,084
  5. Step 5: Solve for x
    x = 348,136,711,530,084/12,472,854
  6. Step 6: Final answer
    x = 27,911,551.88

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.