Home / 8,471,804.40-12,707,706.60-7,887,219.30

Finding the Fourth Proportional to 8,471,804.40, 12,707,706.60 and 7,887,219.30

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Solution

The fourth proportional to 8,471,804.40, 12,707,706.60 and 7,887,219.30 is: 11,830,828.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,471,804.40 : 12,707,706.60 = 7,887,219.30 : x
  2. Step 2: Convert to fraction form
    8,471,804.40/12,707,706.60 = 7,887,219.30/x
  3. Step 3: Cross multiply
    8,471,804.40x = 12,707,706.60 × 7,887,219.30
  4. Step 4: Simplify right side
    8,471,804.40x = 100,228,468,754,257.38
  5. Step 5: Solve for x
    x = 100,228,468,754,257.38/8,471,804.40
  6. Step 6: Final answer
    x = 11,830,828.95

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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.