Home / 7,131,183.80-9,840,961.30-3,867,928.43

Finding the Fourth Proportional to 7,131,183.80, 9,840,961.30 and 3,867,928.43

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Solution

The fourth proportional to 7,131,183.80, 9,840,961.30 and 3,867,928.43 is: 5,337,701.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,131,183.80 : 9,840,961.30 = 3,867,928.43 : x
  2. Step 2: Convert to fraction form
    7,131,183.80/9,840,961.30 = 3,867,928.43/x
  3. Step 3: Cross multiply
    7,131,183.80x = 9,840,961.30 × 3,867,928.43
  4. Step 4: Simplify right side
    7,131,183.80x = 38,064,133,990,799.77
  5. Step 5: Solve for x
    x = 38,064,133,990,799.77/7,131,183.80
  6. Step 6: Final answer
    x = 5,337,701.99

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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.