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Finding the Third Proportional to 18,867,245 and 28,188,054

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Solution

The third proportional to 18,867,245 and 28,188,054 is: 42,113,535.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,867,245 : 28,188,054 = 28,188,054 : x
  2. Step 2: Convert to fraction form
    18,867,245/28,188,054 = 28,188,054/x
  3. Step 3: Cross multiply
    18,867,245x = 28,188,054 × 28,188,054
  4. Step 4: Simplify right side
    18,867,245x = 794,566,388,306,916
  5. Step 5: Solve for x
    x = 794,566,388,306,916/18,867,245
  6. Step 6: Final answer
    x = 42,113,535.30

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.