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Finding the Third Proportional to 79,401,042 and 121,437,387

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Solution

The third proportional to 79,401,042 and 121,437,387 is: 185,728,531.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,401,042 : 121,437,387 = 121,437,387 : x
  2. Step 2: Convert to fraction form
    79,401,042/121,437,387 = 121,437,387/x
  3. Step 3: Cross multiply
    79,401,042x = 121,437,387 × 121,437,387
  4. Step 4: Simplify right side
    79,401,042x = 14,747,038,961,387,768
  5. Step 5: Solve for x
    x = 14,747,038,961,387,768/79,401,042
  6. Step 6: Final answer
    x = 185,728,531.89

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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.