Home / 311,021,640.48-466,559,251.46-80,991,143.40

Finding the Fourth Proportional to 311,021,640.48, 466,559,251.46 and 80,991,143.40

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Solution

The fourth proportional to 311,021,640.48, 466,559,251.46 and 80,991,143.40 is: 121,493,691.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,021,640.48 : 466,559,251.46 = 80,991,143.40 : x
  2. Step 2: Convert to fraction form
    311,021,640.48/466,559,251.46 = 80,991,143.40/x
  3. Step 3: Cross multiply
    311,021,640.48x = 466,559,251.46 × 80,991,143.40
  4. Step 4: Simplify right side
    311,021,640.48x = 37,787,167,239,593,520
  5. Step 5: Solve for x
    x = 37,787,167,239,593,520/311,021,640.48
  6. Step 6: Final answer
    x = 121,493,691.50

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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.