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Finding the Third Proportional to 71,258,860 and 156,136,856

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Solution

The third proportional to 71,258,860 and 156,136,856 is: 342,114,900.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,258,860 : 156,136,856 = 156,136,856 : x
  2. Step 2: Convert to fraction form
    71,258,860/156,136,856 = 156,136,856/x
  3. Step 3: Cross multiply
    71,258,860x = 156,136,856 × 156,136,856
  4. Step 4: Simplify right side
    71,258,860x = 24,378,717,801,564,736
  5. Step 5: Solve for x
    x = 24,378,717,801,564,736/71,258,860
  6. Step 6: Final answer
    x = 342,114,900.54

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.