Home / 7,941,909.68-11,912,865.72-5,550,425.12

Finding the Fourth Proportional to 7,941,909.68, 11,912,865.72 and 5,550,425.12

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Solution

The fourth proportional to 7,941,909.68, 11,912,865.72 and 5,550,425.12 is: 8,325,638.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,941,909.68 : 11,912,865.72 = 5,550,425.12 : x
  2. Step 2: Convert to fraction form
    7,941,909.68/11,912,865.72 = 5,550,425.12/x
  3. Step 3: Cross multiply
    7,941,909.68x = 11,912,865.72 × 5,550,425.12
  4. Step 4: Simplify right side
    7,941,909.68x = 66,121,469,143,474.89
  5. Step 5: Solve for x
    x = 66,121,469,143,474.89/7,941,909.68
  6. Step 6: Final answer
    x = 8,325,638.52

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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.