Home / 72,592,987.20-108,889,480.80-36,313,281.60

Finding the Fourth Proportional to 72,592,987.20, 108,889,480.80 and 36,313,281.60

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Solution

The fourth proportional to 72,592,987.20, 108,889,480.80 and 36,313,281.60 is: 54,469,922.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,592,987.20 : 108,889,480.80 = 36,313,281.60 : x
  2. Step 2: Convert to fraction form
    72,592,987.20/108,889,480.80 = 36,313,281.60/x
  3. Step 3: Cross multiply
    72,592,987.20x = 108,889,480.80 × 36,313,281.60
  4. Step 4: Simplify right side
    72,592,987.20x = 3,954,134,379,568,193.50
  5. Step 5: Solve for x
    x = 3,954,134,379,568,193.50/72,592,987.20
  6. Step 6: Final answer
    x = 54,469,922.40

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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.