Home / 13,812,831.20-20,719,246.80-4,228,230.80

Finding the Fourth Proportional to 13,812,831.20, 20,719,246.80 and 4,228,230.80

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Solution

The fourth proportional to 13,812,831.20, 20,719,246.80 and 4,228,230.80 is: 6,342,346.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,812,831.20 : 20,719,246.80 = 4,228,230.80 : x
  2. Step 2: Convert to fraction form
    13,812,831.20/20,719,246.80 = 4,228,230.80/x
  3. Step 3: Cross multiply
    13,812,831.20x = 20,719,246.80 × 4,228,230.80
  4. Step 4: Simplify right side
    13,812,831.20x = 87,605,757,472,561.44
  5. Step 5: Solve for x
    x = 87,605,757,472,561.44/13,812,831.20
  6. Step 6: Final answer
    x = 6,342,346.20

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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.