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Finding the Third Proportional to 121,614,419 and 188,468,866

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Solution

The third proportional to 121,614,419 and 188,468,866 is: 292,074,852.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,614,419 : 188,468,866 = 188,468,866 : x
  2. Step 2: Convert to fraction form
    121,614,419/188,468,866 = 188,468,866/x
  3. Step 3: Cross multiply
    121,614,419x = 188,468,866 × 188,468,866
  4. Step 4: Simplify right side
    121,614,419x = 35,520,513,451,325,956
  5. Step 5: Solve for x
    x = 35,520,513,451,325,956/121,614,419
  6. Step 6: Final answer
    x = 292,074,852.17

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