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Finding the Third Proportional to 3,981,015.84 and 8,129,128.36

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Solution

The third proportional to 3,981,015.84 and 8,129,128.36 is: 16,599,463.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,981,015.84 : 8,129,128.36 = 8,129,128.36 : x
  2. Step 2: Convert to fraction form
    3,981,015.84/8,129,128.36 = 8,129,128.36/x
  3. Step 3: Cross multiply
    3,981,015.84x = 8,129,128.36 × 8,129,128.36
  4. Step 4: Simplify right side
    3,981,015.84x = 66,082,727,883,194.88
  5. Step 5: Solve for x
    x = 66,082,727,883,194.88/3,981,015.84
  6. Step 6: Final answer
    x = 16,599,463.67

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Why These Related Problems?

These problems maintain the same ratio (2.04) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.