Home / 12,131,336.66-18,176,826.84-8,529,550.64

Finding the Fourth Proportional to 12,131,336.66, 18,176,826.84 and 8,529,550.64

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Solution

The fourth proportional to 12,131,336.66, 18,176,826.84 and 8,529,550.64 is: 12,780,138.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,131,336.66 : 18,176,826.84 = 8,529,550.64 : x
  2. Step 2: Convert to fraction form
    12,131,336.66/18,176,826.84 = 8,529,550.64/x
  3. Step 3: Cross multiply
    12,131,336.66x = 18,176,826.84 × 8,529,550.64
  4. Step 4: Simplify right side
    12,131,336.66x = 155,040,165,101,303.78
  5. Step 5: Solve for x
    x = 155,040,165,101,303.78/12,131,336.66
  6. Step 6: Final answer
    x = 12,780,138.69

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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.