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Finding the Fourth Proportional to 6,647,479.25, 9,971,221.59 and 5,133,375.41

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Solution

The fourth proportional to 6,647,479.25, 9,971,221.59 and 5,133,375.41 is: 7,700,065.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,647,479.25 : 9,971,221.59 = 5,133,375.41 : x
  2. Step 2: Convert to fraction form
    6,647,479.25/9,971,221.59 = 5,133,375.41/x
  3. Step 3: Cross multiply
    6,647,479.25x = 9,971,221.59 × 5,133,375.41
  4. Step 4: Simplify right side
    6,647,479.25x = 51,186,023,667,910.99
  5. Step 5: Solve for x
    x = 51,186,023,667,910.99/6,647,479.25
  6. Step 6: Final answer
    x = 7,700,065.21

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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.