Home / 8,335,426.20-12,479,519.70-7,485,120.60

Finding the Fourth Proportional to 8,335,426.20, 12,479,519.70 and 7,485,120.60

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Solution

The fourth proportional to 8,335,426.20, 12,479,519.70 and 7,485,120.60 is: 11,206,470.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,335,426.20 : 12,479,519.70 = 7,485,120.60 : x
  2. Step 2: Convert to fraction form
    8,335,426.20/12,479,519.70 = 7,485,120.60/x
  3. Step 3: Cross multiply
    8,335,426.20x = 12,479,519.70 × 7,485,120.60
  4. Step 4: Simplify right side
    8,335,426.20x = 93,410,709,984,575.81
  5. Step 5: Solve for x
    x = 93,410,709,984,575.81/8,335,426.20
  6. Step 6: Final answer
    x = 11,206,470.76

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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.