Home / 8,217,472.68-12,319,528.14-3,428,728.92

Finding the Fourth Proportional to 8,217,472.68, 12,319,528.14 and 3,428,728.92

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Solution

The fourth proportional to 8,217,472.68, 12,319,528.14 and 3,428,728.92 is: 5,140,305.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,217,472.68 : 12,319,528.14 = 3,428,728.92 : x
  2. Step 2: Convert to fraction form
    8,217,472.68/12,319,528.14 = 3,428,728.92/x
  3. Step 3: Cross multiply
    8,217,472.68x = 12,319,528.14 × 3,428,728.92
  4. Step 4: Simplify right side
    8,217,472.68x = 42,240,322,414,371.81
  5. Step 5: Solve for x
    x = 42,240,322,414,371.81/8,217,472.68
  6. Step 6: Final answer
    x = 5,140,305.79

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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.