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Finding the Third Proportional to 18,190,860 and 39,134,424

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Solution

The third proportional to 18,190,860 and 39,134,424 is: 84,190,804.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,190,860 : 39,134,424 = 39,134,424 : x
  2. Step 2: Convert to fraction form
    18,190,860/39,134,424 = 39,134,424/x
  3. Step 3: Cross multiply
    18,190,860x = 39,134,424 × 39,134,424
  4. Step 4: Simplify right side
    18,190,860x = 1,531,503,141,811,776
  5. Step 5: Solve for x
    x = 1,531,503,141,811,776/18,190,860
  6. Step 6: Final answer
    x = 84,190,804.71

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.