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Finding the Third Proportional to 18,926,530 and 28,358,218

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Solution

The third proportional to 18,926,530 and 28,358,218 is: 42,490,014.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,926,530 : 28,358,218 = 28,358,218 : x
  2. Step 2: Convert to fraction form
    18,926,530/28,358,218 = 28,358,218/x
  3. Step 3: Cross multiply
    18,926,530x = 28,358,218 × 28,358,218
  4. Step 4: Simplify right side
    18,926,530x = 804,188,528,135,524
  5. Step 5: Solve for x
    x = 804,188,528,135,524/18,926,530
  6. Step 6: Final answer
    x = 42,490,014.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.