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Finding the Third Proportional to 987,919,342.50 and 2,156,872,677

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Solution

The third proportional to 987,919,342.50 and 2,156,872,677 is: 4,708,987,408.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,919,342.50 : 2,156,872,677 = 2,156,872,677 : x
  2. Step 2: Convert to fraction form
    987,919,342.50/2,156,872,677 = 2,156,872,677/x
  3. Step 3: Cross multiply
    987,919,342.50x = 2,156,872,677 × 2,156,872,677
  4. Step 4: Simplify right side
    987,919,342.50x = 4,652,099,744,789,146,624
  5. Step 5: Solve for x
    x = 4,652,099,744,789,146,624/987,919,342.50
  6. Step 6: Final answer
    x = 4,708,987,408.85

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.