Home / 7,981,883.10-11,974,379.85-3,188,756.70

Finding the Fourth Proportional to 7,981,883.10, 11,974,379.85 and 3,188,756.70

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Solution

The fourth proportional to 7,981,883.10, 11,974,379.85 and 3,188,756.70 is: 4,783,756.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,981,883.10 : 11,974,379.85 = 3,188,756.70 : x
  2. Step 2: Convert to fraction form
    7,981,883.10/11,974,379.85 = 3,188,756.70/x
  3. Step 3: Cross multiply
    7,981,883.10x = 11,974,379.85 × 3,188,756.70
  4. Step 4: Simplify right side
    7,981,883.10x = 38,183,383,975,032.49
  5. Step 5: Solve for x
    x = 38,183,383,975,032.49/7,981,883.10
  6. Step 6: Final answer
    x = 4,783,756.35

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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.