Home / 8,309,371.25-12,465,672.83-3,191,426.75

Finding the Fourth Proportional to 8,309,371.25, 12,465,672.83 and 3,191,426.75

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Solution

The fourth proportional to 8,309,371.25, 12,465,672.83 and 3,191,426.75 is: 4,787,760.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,309,371.25 : 12,465,672.83 = 3,191,426.75 : x
  2. Step 2: Convert to fraction form
    8,309,371.25/12,465,672.83 = 3,191,426.75/x
  3. Step 3: Cross multiply
    8,309,371.25x = 12,465,672.83 × 3,191,426.75
  4. Step 4: Simplify right side
    8,309,371.25x = 39,783,281,726,410.20
  5. Step 5: Solve for x
    x = 39,783,281,726,410.20/8,309,371.25
  6. Step 6: Final answer
    x = 4,787,760.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.