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Finding the Third Proportional to 408,352,540 and 627,667,103

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Solution

The third proportional to 408,352,540 and 627,667,103 is: 964,769,295.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,352,540 : 627,667,103 = 627,667,103 : x
  2. Step 2: Convert to fraction form
    408,352,540/627,667,103 = 627,667,103/x
  3. Step 3: Cross multiply
    408,352,540x = 627,667,103 × 627,667,103
  4. Step 4: Simplify right side
    408,352,540x = 393,965,992,188,412,608
  5. Step 5: Solve for x
    x = 393,965,992,188,412,608/408,352,540
  6. Step 6: Final answer
    x = 964,769,295.15

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.