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Finding the Third Proportional to 18,942,131 and 40,840,931

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Solution

The third proportional to 18,942,131 and 40,840,931 is: 88,056,705.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,942,131 : 40,840,931 = 40,840,931 : x
  2. Step 2: Convert to fraction form
    18,942,131/40,840,931 = 40,840,931/x
  3. Step 3: Cross multiply
    18,942,131x = 40,840,931 × 40,840,931
  4. Step 4: Simplify right side
    18,942,131x = 1,667,981,644,946,761
  5. Step 5: Solve for x
    x = 1,667,981,644,946,761/18,942,131
  6. Step 6: Final answer
    x = 88,056,705.18

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.