Home / 20,857,660.80-31,286,491.20-18,336,163.20

Finding the Fourth Proportional to 20,857,660.80, 31,286,491.20 and 18,336,163.20

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Solution

The fourth proportional to 20,857,660.80, 31,286,491.20 and 18,336,163.20 is: 27,504,244.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,857,660.80 : 31,286,491.20 = 18,336,163.20 : x
  2. Step 2: Convert to fraction form
    20,857,660.80/31,286,491.20 = 18,336,163.20/x
  3. Step 3: Cross multiply
    20,857,660.80x = 31,286,491.20 × 18,336,163.20
  4. Step 4: Simplify right side
    20,857,660.80x = 573,674,208,598,563.75
  5. Step 5: Solve for x
    x = 573,674,208,598,563.75/20,857,660.80
  6. Step 6: Final answer
    x = 27,504,244.80

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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.