Home / 154,247,279.20-212,861,649.54-83,682,885.85

Finding the Fourth Proportional to 154,247,279.20, 212,861,649.54 and 83,682,885.85

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Solution

The fourth proportional to 154,247,279.20, 212,861,649.54 and 83,682,885.85 is: 115,482,601.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,247,279.20 : 212,861,649.54 = 83,682,885.85 : x
  2. Step 2: Convert to fraction form
    154,247,279.20/212,861,649.54 = 83,682,885.85/x
  3. Step 3: Cross multiply
    154,247,279.20x = 212,861,649.54 × 83,682,885.85
  4. Step 4: Simplify right side
    154,247,279.20x = 17,812,877,120,298,524
  5. Step 5: Solve for x
    x = 17,812,877,120,298,524/154,247,279.20
  6. Step 6: Final answer
    x = 115,482,601.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.