Home / 18,723,919.80-28,085,879.70-15,984,046.20

Finding the Fourth Proportional to 18,723,919.80, 28,085,879.70 and 15,984,046.20

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Solution

The fourth proportional to 18,723,919.80, 28,085,879.70 and 15,984,046.20 is: 23,976,069.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,723,919.80 : 28,085,879.70 = 15,984,046.20 : x
  2. Step 2: Convert to fraction form
    18,723,919.80/28,085,879.70 = 15,984,046.20/x
  3. Step 3: Cross multiply
    18,723,919.80x = 28,085,879.70 × 15,984,046.20
  4. Step 4: Simplify right side
    18,723,919.80x = 448,925,998,692,442.12
  5. Step 5: Solve for x
    x = 448,925,998,692,442.12/18,723,919.80
  6. Step 6: Final answer
    x = 23,976,069.30

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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.