Home / 72,592,975.20-108,889,462.80-36,313,269.60

Finding the Fourth Proportional to 72,592,975.20, 108,889,462.80 and 36,313,269.60

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Solution

The fourth proportional to 72,592,975.20, 108,889,462.80 and 36,313,269.60 is: 54,469,904.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,592,975.20 : 108,889,462.80 = 36,313,269.60 : x
  2. Step 2: Convert to fraction form
    72,592,975.20/108,889,462.80 = 36,313,269.60/x
  3. Step 3: Cross multiply
    72,592,975.20x = 108,889,462.80 × 36,313,269.60
  4. Step 4: Simplify right side
    72,592,975.20x = 3,954,132,419,255,571
  5. Step 5: Solve for x
    x = 3,954,132,419,255,571/72,592,975.20
  6. Step 6: Final answer
    x = 54,469,904.40

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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.