Home / 7,145,813.20-9,861,258.70-3,882,636.27

Finding the Fourth Proportional to 7,145,813.20, 9,861,258.70 and 3,882,636.27

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Solution

The fourth proportional to 7,145,813.20, 9,861,258.70 and 3,882,636.27 is: 5,358,057.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,145,813.20 : 9,861,258.70 = 3,882,636.27 : x
  2. Step 2: Convert to fraction form
    7,145,813.20/9,861,258.70 = 3,882,636.27/x
  3. Step 3: Cross multiply
    7,145,813.20x = 9,861,258.70 × 3,882,636.27
  4. Step 4: Simplify right side
    7,145,813.20x = 38,287,680,696,473.05
  5. Step 5: Solve for x
    x = 38,287,680,696,473.05/7,145,813.20
  6. Step 6: Final answer
    x = 5,358,057.88

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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.