Home / 7,231,421.12-9,976,889.34-4,131,720.38

Finding the Fourth Proportional to 7,231,421.12, 9,976,889.34 and 4,131,720.38

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Solution

The fourth proportional to 7,231,421.12, 9,976,889.34 and 4,131,720.38 is: 5,700,361.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,231,421.12 : 9,976,889.34 = 4,131,720.38 : x
  2. Step 2: Convert to fraction form
    7,231,421.12/9,976,889.34 = 4,131,720.38/x
  3. Step 3: Cross multiply
    7,231,421.12x = 9,976,889.34 × 4,131,720.38
  4. Step 4: Simplify right side
    7,231,421.12x = 41,221,717,015,082.75
  5. Step 5: Solve for x
    x = 41,221,717,015,082.75/7,231,421.12
  6. Step 6: Final answer
    x = 5,700,361.84

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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.