Home / 6,840,143.80-9,438,568.68-3,940,473.40

Finding the Fourth Proportional to 6,840,143.80, 9,438,568.68 and 3,940,473.40

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Solution

The fourth proportional to 6,840,143.80, 9,438,568.68 and 3,940,473.40 is: 5,437,375.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,840,143.80 : 9,438,568.68 = 3,940,473.40 : x
  2. Step 2: Convert to fraction form
    6,840,143.80/9,438,568.68 = 3,940,473.40/x
  3. Step 3: Cross multiply
    6,840,143.80x = 9,438,568.68 × 3,940,473.40
  4. Step 4: Simplify right side
    6,840,143.80x = 37,192,428,817,613.11
  5. Step 5: Solve for x
    x = 37,192,428,817,613.11/6,840,143.80
  6. Step 6: Final answer
    x = 5,437,375.28

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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.