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Finding the Third Proportional to 396,540,916 and 858,960,103

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Solution

The third proportional to 396,540,916 and 858,960,103 is: 1,860,621,259.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,540,916 : 858,960,103 = 858,960,103 : x
  2. Step 2: Convert to fraction form
    396,540,916/858,960,103 = 858,960,103/x
  3. Step 3: Cross multiply
    396,540,916x = 858,960,103 × 858,960,103
  4. Step 4: Simplify right side
    396,540,916x = 737,812,458,545,770,624
  5. Step 5: Solve for x
    x = 737,812,458,545,770,624/396,540,916
  6. Step 6: Final answer
    x = 1,860,621,259.44

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.