Home / 215,965,125.80-323,976,104.70-79,746,194.60

Finding the Fourth Proportional to 215,965,125.80, 323,976,104.70 and 79,746,194.60

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Solution

The fourth proportional to 215,965,125.80, 323,976,104.70 and 79,746,194.60 is: 119,629,784.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,965,125.80 : 323,976,104.70 = 79,746,194.60 : x
  2. Step 2: Convert to fraction form
    215,965,125.80/323,976,104.70 = 79,746,194.60/x
  3. Step 3: Cross multiply
    215,965,125.80x = 323,976,104.70 × 79,746,194.60
  4. Step 4: Simplify right side
    215,965,125.80x = 25,835,861,491,156,172
  5. Step 5: Solve for x
    x = 25,835,861,491,156,172/215,965,125.80
  6. Step 6: Final answer
    x = 119,629,784.65

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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.