Home / 18,981,083.54-28,517,046.77-12,170,999.23

Finding the Fourth Proportional to 18,981,083.54, 28,517,046.77 and 12,170,999.23

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Solution

The fourth proportional to 18,981,083.54, 28,517,046.77 and 12,170,999.23 is: 18,285,623.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,981,083.54 : 28,517,046.77 = 12,170,999.23 : x
  2. Step 2: Convert to fraction form
    18,981,083.54/28,517,046.77 = 12,170,999.23/x
  3. Step 3: Cross multiply
    18,981,083.54x = 28,517,046.77 × 12,170,999.23
  4. Step 4: Simplify right side
    18,981,083.54x = 347,080,954,238,678.88
  5. Step 5: Solve for x
    x = 347,080,954,238,678.88/18,981,083.54
  6. Step 6: Final answer
    x = 18,285,623.87

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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.