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Finding the Third Proportional to 79,274,315 and 121,280,847

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Solution

The third proportional to 79,274,315 and 121,280,847 is: 185,546,148.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,274,315 : 121,280,847 = 121,280,847 : x
  2. Step 2: Convert to fraction form
    79,274,315/121,280,847 = 121,280,847/x
  3. Step 3: Cross multiply
    79,274,315x = 121,280,847 × 121,280,847
  4. Step 4: Simplify right side
    79,274,315x = 14,709,043,849,037,408
  5. Step 5: Solve for x
    x = 14,709,043,849,037,408/79,274,315
  6. Step 6: Final answer
    x = 185,546,148.83

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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.