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Finding the Third Proportional to 12,009,812 and 18,589,171

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Solution

The third proportional to 12,009,812 and 18,589,171 is: 28,772,913.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,009,812 : 18,589,171 = 18,589,171 : x
  2. Step 2: Convert to fraction form
    12,009,812/18,589,171 = 18,589,171/x
  3. Step 3: Cross multiply
    12,009,812x = 18,589,171 × 18,589,171
  4. Step 4: Simplify right side
    12,009,812x = 345,557,278,467,241
  5. Step 5: Solve for x
    x = 345,557,278,467,241/12,009,812
  6. Step 6: Final answer
    x = 28,772,913.22

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.