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Finding the Third Proportional to 79,274,317 and 121,280,851

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Solution

The third proportional to 79,274,317 and 121,280,851 is: 185,546,156.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,274,317 : 121,280,851 = 121,280,851 : x
  2. Step 2: Convert to fraction form
    79,274,317/121,280,851 = 121,280,851/x
  3. Step 3: Cross multiply
    79,274,317x = 121,280,851 × 121,280,851
  4. Step 4: Simplify right side
    79,274,317x = 14,709,044,819,284,200
  5. Step 5: Solve for x
    x = 14,709,044,819,284,200/79,274,317
  6. Step 6: Final answer
    x = 185,546,156.38

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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.