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Finding the Third Proportional to 79,154,928 and 121,086,414

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Solution

The third proportional to 79,154,928 and 121,086,414 is: 185,230,661.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,154,928 : 121,086,414 = 121,086,414 : x
  2. Step 2: Convert to fraction form
    79,154,928/121,086,414 = 121,086,414/x
  3. Step 3: Cross multiply
    79,154,928x = 121,086,414 × 121,086,414
  4. Step 4: Simplify right side
    79,154,928x = 14,661,919,655,379,396
  5. Step 5: Solve for x
    x = 14,661,919,655,379,396/79,154,928
  6. Step 6: Final answer
    x = 185,230,661.26

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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.