Home / 18,981,077.22-28,517,037.48-12,170,992.98

Finding the Fourth Proportional to 18,981,077.22, 28,517,037.48 and 12,170,992.98

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Solution

The fourth proportional to 18,981,077.22, 28,517,037.48 and 12,170,992.98 is: 18,285,614.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,981,077.22 : 28,517,037.48 = 12,170,992.98 : x
  2. Step 2: Convert to fraction form
    18,981,077.22/28,517,037.48 = 12,170,992.98/x
  3. Step 3: Cross multiply
    18,981,077.22x = 28,517,037.48 × 12,170,992.98
  4. Step 4: Simplify right side
    18,981,077.22x = 347,080,662,979,476.94
  5. Step 5: Solve for x
    x = 347,080,662,979,476.94/18,981,077.22
  6. Step 6: Final answer
    x = 18,285,614.61

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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.