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Finding the Third Proportional to 85,960,639.42 and 121,517,392.65

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Solution

The third proportional to 85,960,639.42 and 121,517,392.65 is: 171,781,838.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,960,639.42 : 121,517,392.65 = 121,517,392.65 : x
  2. Step 2: Convert to fraction form
    85,960,639.42/121,517,392.65 = 121,517,392.65/x
  3. Step 3: Cross multiply
    85,960,639.42x = 121,517,392.65 × 121,517,392.65
  4. Step 4: Simplify right side
    85,960,639.42x = 14,766,476,717,380,236
  5. Step 5: Solve for x
    x = 14,766,476,717,380,236/85,960,639.42
  6. Step 6: Final answer
    x = 171,781,838.97

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Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.