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Finding the Third Proportional to 79,211,542 and 121,172,195

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Solution

The third proportional to 79,211,542 and 121,172,195 is: 185,360,623.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,211,542 : 121,172,195 = 121,172,195 : x
  2. Step 2: Convert to fraction form
    79,211,542/121,172,195 = 121,172,195/x
  3. Step 3: Cross multiply
    79,211,542x = 121,172,195 × 121,172,195
  4. Step 4: Simplify right side
    79,211,542x = 14,682,700,841,118,024
  5. Step 5: Solve for x
    x = 14,682,700,841,118,024/79,211,542
  6. Step 6: Final answer
    x = 185,360,623.85

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.