Home / 7,231,711.88-9,979,884.88-3,968,830.20

Finding the Fourth Proportional to 7,231,711.88, 9,979,884.88 and 3,968,830.20

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Solution

The fourth proportional to 7,231,711.88, 9,979,884.88 and 3,968,830.20 is: 5,477,052.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,231,711.88 : 9,979,884.88 = 3,968,830.20 : x
  2. Step 2: Convert to fraction form
    7,231,711.88/9,979,884.88 = 3,968,830.20/x
  3. Step 3: Cross multiply
    7,231,711.88x = 9,979,884.88 × 3,968,830.20
  4. Step 4: Simplify right side
    7,231,711.88x = 39,608,468,504,267.38
  5. Step 5: Solve for x
    x = 39,608,468,504,267.38/7,231,711.88
  6. Step 6: Final answer
    x = 5,477,052.90

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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.