Home / 12,145,834.88-16,761,252.92-6,639,231.54

Finding the Fourth Proportional to 12,145,834.88, 16,761,252.92 and 6,639,231.54

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Solution

The fourth proportional to 12,145,834.88, 16,761,252.92 and 6,639,231.54 is: 9,162,139.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,145,834.88 : 16,761,252.92 = 6,639,231.54 : x
  2. Step 2: Convert to fraction form
    12,145,834.88/16,761,252.92 = 6,639,231.54/x
  3. Step 3: Cross multiply
    12,145,834.88x = 16,761,252.92 × 6,639,231.54
  4. Step 4: Simplify right side
    12,145,834.88x = 111,281,839,003,184.94
  5. Step 5: Solve for x
    x = 111,281,839,003,184.94/12,145,834.88
  6. Step 6: Final answer
    x = 9,162,139.96

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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.