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Finding the Third Proportional to 79,863,370 and 122,679,915.50

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Solution

The third proportional to 79,863,370 and 122,679,915.50 is: 188,451,372.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,863,370 : 122,679,915.50 = 122,679,915.50 : x
  2. Step 2: Convert to fraction form
    79,863,370/122,679,915.50 = 122,679,915.50/x
  3. Step 3: Cross multiply
    79,863,370x = 122,679,915.50 × 122,679,915.50
  4. Step 4: Simplify right side
    79,863,370x = 15,050,361,667,087,140
  5. Step 5: Solve for x
    x = 15,050,361,667,087,140/79,863,370
  6. Step 6: Final answer
    x = 188,451,372.23

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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.