Home / 7,887,910.20-11,828,366.10-3,629,383.80

Finding the Fourth Proportional to 7,887,910.20, 11,828,366.10 and 3,629,383.80

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Solution

The fourth proportional to 7,887,910.20, 11,828,366.10 and 3,629,383.80 is: 5,442,465.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,887,910.20 : 11,828,366.10 = 3,629,383.80 : x
  2. Step 2: Convert to fraction form
    7,887,910.20/11,828,366.10 = 3,629,383.80/x
  3. Step 3: Cross multiply
    7,887,910.20x = 11,828,366.10 × 3,629,383.80
  4. Step 4: Simplify right side
    7,887,910.20x = 42,929,680,303,809.18
  5. Step 5: Solve for x
    x = 42,929,680,303,809.18/7,887,910.20
  6. Step 6: Final answer
    x = 5,442,465.65

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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.