Home / 72,582,949.20-108,874,423.80-67,040,216.40

Finding the Fourth Proportional to 72,582,949.20, 108,874,423.80 and 67,040,216.40

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Solution

The fourth proportional to 72,582,949.20, 108,874,423.80 and 67,040,216.40 is: 100,560,324.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,582,949.20 : 108,874,423.80 = 67,040,216.40 : x
  2. Step 2: Convert to fraction form
    72,582,949.20/108,874,423.80 = 67,040,216.40/x
  3. Step 3: Cross multiply
    72,582,949.20x = 108,874,423.80 × 67,040,216.40
  4. Step 4: Simplify right side
    72,582,949.20x = 7,298,964,931,977,310
  5. Step 5: Solve for x
    x = 7,298,964,931,977,310/72,582,949.20
  6. Step 6: Final answer
    x = 100,560,324.60

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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.