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Finding the Third Proportional to 8,621,976 and 11,988,168

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Solution

The third proportional to 8,621,976 and 11,988,168 is: 16,668,588.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,621,976 : 11,988,168 = 11,988,168 : x
  2. Step 2: Convert to fraction form
    8,621,976/11,988,168 = 11,988,168/x
  3. Step 3: Cross multiply
    8,621,976x = 11,988,168 × 11,988,168
  4. Step 4: Simplify right side
    8,621,976x = 143,716,171,996,224
  5. Step 5: Solve for x
    x = 143,716,171,996,224/8,621,976
  6. Step 6: Final answer
    x = 16,668,588.73

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.