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Finding the Third Proportional to 8,521,364 and 11,985,867

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Solution

The third proportional to 8,521,364 and 11,985,867 is: 16,858,921.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,521,364 : 11,985,867 = 11,985,867 : x
  2. Step 2: Convert to fraction form
    8,521,364/11,985,867 = 11,985,867/x
  3. Step 3: Cross multiply
    8,521,364x = 11,985,867 × 11,985,867
  4. Step 4: Simplify right side
    8,521,364x = 143,661,007,741,689
  5. Step 5: Solve for x
    x = 143,661,007,741,689/8,521,364
  6. Step 6: Final answer
    x = 16,858,921.62

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Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.