Home / 18,723,280.80-28,084,921.20-8,645,584.80

Finding the Fourth Proportional to 18,723,280.80, 28,084,921.20 and 8,645,584.80

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Solution

The fourth proportional to 18,723,280.80, 28,084,921.20 and 8,645,584.80 is: 12,968,377.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,723,280.80 : 28,084,921.20 = 8,645,584.80 : x
  2. Step 2: Convert to fraction form
    18,723,280.80/28,084,921.20 = 8,645,584.80/x
  3. Step 3: Cross multiply
    18,723,280.80x = 28,084,921.20 × 8,645,584.80
  4. Step 4: Simplify right side
    18,723,280.80x = 242,810,567,835,917.78
  5. Step 5: Solve for x
    x = 242,810,567,835,917.78/18,723,280.80
  6. Step 6: Final answer
    x = 12,968,377.20

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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.