Home / 13,628,480.80-20,442,721.20-8,589,632.80

Finding the Fourth Proportional to 13,628,480.80, 20,442,721.20 and 8,589,632.80

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Solution

The fourth proportional to 13,628,480.80, 20,442,721.20 and 8,589,632.80 is: 12,884,449.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,628,480.80 : 20,442,721.20 = 8,589,632.80 : x
  2. Step 2: Convert to fraction form
    13,628,480.80/20,442,721.20 = 8,589,632.80/x
  3. Step 3: Cross multiply
    13,628,480.80x = 20,442,721.20 × 8,589,632.80
  4. Step 4: Simplify right side
    13,628,480.80x = 175,595,468,540,775.38
  5. Step 5: Solve for x
    x = 175,595,468,540,775.38/13,628,480.80
  6. Step 6: Final answer
    x = 12,884,449.20

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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.