Home / 18,981,084.54-28,517,048.27-12,171,000.23

Finding the Fourth Proportional to 18,981,084.54, 28,517,048.27 and 12,171,000.23

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Solution

The fourth proportional to 18,981,084.54, 28,517,048.27 and 12,171,000.23 is: 18,285,625.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,981,084.54 : 28,517,048.27 = 12,171,000.23 : x
  2. Step 2: Convert to fraction form
    18,981,084.54/28,517,048.27 = 12,171,000.23/x
  3. Step 3: Cross multiply
    18,981,084.54x = 28,517,048.27 × 12,171,000.23
  4. Step 4: Simplify right side
    18,981,084.54x = 347,081,001,053,091.12
  5. Step 5: Solve for x
    x = 347,081,001,053,091.12/18,981,084.54
  6. Step 6: Final answer
    x = 18,285,625.37

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1.5x scale

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.