Home / 8,138,260.80-12,188,728.80-7,951,636.80

Finding the Fourth Proportional to 8,138,260.80, 12,188,728.80 and 7,951,636.80

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Solution

The fourth proportional to 8,138,260.80, 12,188,728.80 and 7,951,636.80 is: 11,909,220.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,138,260.80 : 12,188,728.80 = 7,951,636.80 : x
  2. Step 2: Convert to fraction form
    8,138,260.80/12,188,728.80 = 7,951,636.80/x
  3. Step 3: Cross multiply
    8,138,260.80x = 12,188,728.80 × 7,951,636.80
  4. Step 4: Simplify right side
    8,138,260.80x = 96,920,344,471,299.84
  5. Step 5: Solve for x
    x = 96,920,344,471,299.84/8,138,260.80
  6. Step 6: Final answer
    x = 11,909,220.76

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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.