Home / 7,231,193.70-9,979,019.78-3,968,063.03

Finding the Fourth Proportional to 7,231,193.70, 9,979,019.78 and 3,968,063.03

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Solution

The fourth proportional to 7,231,193.70, 9,979,019.78 and 3,968,063.03 is: 5,475,911.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,231,193.70 : 9,979,019.78 = 3,968,063.03 : x
  2. Step 2: Convert to fraction form
    7,231,193.70/9,979,019.78 = 3,968,063.03/x
  3. Step 3: Cross multiply
    7,231,193.70x = 9,979,019.78 × 3,968,063.03
  4. Step 4: Simplify right side
    7,231,193.70x = 39,597,379,469,763.97
  5. Step 5: Solve for x
    x = 39,597,379,469,763.97/7,231,193.70
  6. Step 6: Final answer
    x = 5,475,911.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.