Home / 7,882,640.20-11,829,209.10-3,620,614.60

Finding the Fourth Proportional to 7,882,640.20, 11,829,209.10 and 3,620,614.60

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Solution

The fourth proportional to 7,882,640.20, 11,829,209.10 and 3,620,614.60 is: 5,433,332.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,882,640.20 : 11,829,209.10 = 3,620,614.60 : x
  2. Step 2: Convert to fraction form
    7,882,640.20/11,829,209.10 = 3,620,614.60/x
  3. Step 3: Cross multiply
    7,882,640.20x = 11,829,209.10 × 3,620,614.60
  4. Step 4: Simplify right side
    7,882,640.20x = 42,829,007,173,912.86
  5. Step 5: Solve for x
    x = 42,829,007,173,912.86/7,882,640.20
  6. Step 6: Final answer
    x = 5,433,332.75

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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.