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Finding the Third Proportional to 18,506,600 and 40,102,198

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Solution

The third proportional to 18,506,600 and 40,102,198 is: 86,897,986.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,506,600 : 40,102,198 = 40,102,198 : x
  2. Step 2: Convert to fraction form
    18,506,600/40,102,198 = 40,102,198/x
  3. Step 3: Cross multiply
    18,506,600x = 40,102,198 × 40,102,198
  4. Step 4: Simplify right side
    18,506,600x = 1,608,186,284,431,204
  5. Step 5: Solve for x
    x = 1,608,186,284,431,204/18,506,600
  6. Step 6: Final answer
    x = 86,897,986.90

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.