Home / 72,582,979.70-108,874,469.55-67,040,246.90

Finding the Fourth Proportional to 72,582,979.70, 108,874,469.55 and 67,040,246.90

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Solution

The fourth proportional to 72,582,979.70, 108,874,469.55 and 67,040,246.90 is: 100,560,370.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,582,979.70 : 108,874,469.55 = 67,040,246.90 : x
  2. Step 2: Convert to fraction form
    72,582,979.70/108,874,469.55 = 67,040,246.90/x
  3. Step 3: Cross multiply
    72,582,979.70x = 108,874,469.55 × 67,040,246.90
  4. Step 4: Simplify right side
    72,582,979.70x = 7,298,971,319,738,532
  5. Step 5: Solve for x
    x = 7,298,971,319,738,532/72,582,979.70
  6. Step 6: Final answer
    x = 100,560,370.35

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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.