Home / 7,145,815.32-9,861,105.54-3,882,680.04

Finding the Fourth Proportional to 7,145,815.32, 9,861,105.54 and 3,882,680.04

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Solution

The fourth proportional to 7,145,815.32, 9,861,105.54 and 3,882,680.04 is: 5,358,033.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,145,815.32 : 9,861,105.54 = 3,882,680.04 : x
  2. Step 2: Convert to fraction form
    7,145,815.32/9,861,105.54 = 3,882,680.04/x
  3. Step 3: Cross multiply
    7,145,815.32x = 9,861,105.54 × 3,882,680.04
  4. Step 4: Simplify right side
    7,145,815.32x = 38,287,517,652,491.42
  5. Step 5: Solve for x
    x = 38,287,517,652,491.42/7,145,815.32
  6. Step 6: Final answer
    x = 5,358,033.47

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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.