Home / 13,568,986.40-20,353,479.60-7,895,616.80

Finding the Fourth Proportional to 13,568,986.40, 20,353,479.60 and 7,895,616.80

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Solution

The fourth proportional to 13,568,986.40, 20,353,479.60 and 7,895,616.80 is: 11,843,425.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,568,986.40 : 20,353,479.60 = 7,895,616.80 : x
  2. Step 2: Convert to fraction form
    13,568,986.40/20,353,479.60 = 7,895,616.80/x
  3. Step 3: Cross multiply
    13,568,986.40x = 20,353,479.60 × 7,895,616.80
  4. Step 4: Simplify right side
    13,568,986.40x = 160,703,275,468,217.28
  5. Step 5: Solve for x
    x = 160,703,275,468,217.28/13,568,986.40
  6. Step 6: Final answer
    x = 11,843,425.20

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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.