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Finding the Third Proportional to 81,675,578 and 126,528,861

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Solution

The third proportional to 81,675,578 and 126,528,861 is: 196,013,950.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,675,578 : 126,528,861 = 126,528,861 : x
  2. Step 2: Convert to fraction form
    81,675,578/126,528,861 = 126,528,861/x
  3. Step 3: Cross multiply
    81,675,578x = 126,528,861 × 126,528,861
  4. Step 4: Simplify right side
    81,675,578x = 16,009,552,665,957,320
  5. Step 5: Solve for x
    x = 16,009,552,665,957,320/81,675,578
  6. Step 6: Final answer
    x = 196,013,950.04

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.