Home / 3,947,659.82-5,920,604-1,815,695.66

Finding the Fourth Proportional to 3,947,659.82, 5,920,604 and 1,815,695.66

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Solution

The fourth proportional to 3,947,659.82, 5,920,604 and 1,815,695.66 is: 2,723,136.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,947,659.82 : 5,920,604 = 1,815,695.66 : x
  2. Step 2: Convert to fraction form
    3,947,659.82/5,920,604 = 1,815,695.66/x
  3. Step 3: Cross multiply
    3,947,659.82x = 5,920,604 × 1,815,695.66
  4. Step 4: Simplify right side
    3,947,659.82x = 10,750,014,987,378.64
  5. Step 5: Solve for x
    x = 10,750,014,987,378.64/3,947,659.82
  6. Step 6: Final answer
    x = 2,723,136.11

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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.