Home / 20,247,515.20-30,373,936.80-7,476,990.40

Finding the Fourth Proportional to 20,247,515.20, 30,373,936.80 and 7,476,990.40

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Solution

The fourth proportional to 20,247,515.20, 30,373,936.80 and 7,476,990.40 is: 11,216,469.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,247,515.20 : 30,373,936.80 = 7,476,990.40 : x
  2. Step 2: Convert to fraction form
    20,247,515.20/30,373,936.80 = 7,476,990.40/x
  3. Step 3: Cross multiply
    20,247,515.20x = 30,373,936.80 × 7,476,990.40
  4. Step 4: Simplify right side
    20,247,515.20x = 227,105,633,863,806.75
  5. Step 5: Solve for x
    x = 227,105,633,863,806.75/20,247,515.20
  6. Step 6: Final answer
    x = 11,216,469.36

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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.