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Finding the Third Proportional to 8,521,372 and 11,985,879

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Solution

The third proportional to 8,521,372 and 11,985,879 is: 16,858,939.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,521,372 : 11,985,879 = 11,985,879 : x
  2. Step 2: Convert to fraction form
    8,521,372/11,985,879 = 11,985,879/x
  3. Step 3: Cross multiply
    8,521,372x = 11,985,879 × 11,985,879
  4. Step 4: Simplify right side
    8,521,372x = 143,661,295,402,641
  5. Step 5: Solve for x
    x = 143,661,295,402,641/8,521,372
  6. Step 6: Final answer
    x = 16,858,939.55

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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.