Home / 7,189,521.44-9,921,489.26-3,926,337.21

Finding the Fourth Proportional to 7,189,521.44, 9,921,489.26 and 3,926,337.21

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Solution

The fourth proportional to 7,189,521.44, 9,921,489.26 and 3,926,337.21 is: 5,418,317.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,189,521.44 : 9,921,489.26 = 3,926,337.21 : x
  2. Step 2: Convert to fraction form
    7,189,521.44/9,921,489.26 = 3,926,337.21/x
  3. Step 3: Cross multiply
    7,189,521.44x = 9,921,489.26 × 3,926,337.21
  4. Step 4: Simplify right side
    7,189,521.44x = 38,955,112,440,521.68
  5. Step 5: Solve for x
    x = 38,955,112,440,521.68/7,189,521.44
  6. Step 6: Final answer
    x = 5,418,317.87

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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.