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Finding the Third Proportional to 396,540,926 and 858,960,124

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Solution

The third proportional to 396,540,926 and 858,960,124 is: 1,860,621,303.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,540,926 : 858,960,124 = 858,960,124 : x
  2. Step 2: Convert to fraction form
    396,540,926/858,960,124 = 858,960,124/x
  3. Step 3: Cross multiply
    396,540,926x = 858,960,124 × 858,960,124
  4. Step 4: Simplify right side
    396,540,926x = 737,812,494,622,095,360
  5. Step 5: Solve for x
    x = 737,812,494,622,095,360/396,540,926
  6. Step 6: Final answer
    x = 1,860,621,303.49

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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.