Home / 6,491,990-8,959,209.99-3,591,330.86

Finding the Fourth Proportional to 6,491,990, 8,959,209.99 and 3,591,330.86

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Solution

The fourth proportional to 6,491,990, 8,959,209.99 and 3,591,330.86 is: 4,956,182.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,491,990 : 8,959,209.99 = 3,591,330.86 : x
  2. Step 2: Convert to fraction form
    6,491,990/8,959,209.99 = 3,591,330.86/x
  3. Step 3: Cross multiply
    6,491,990x = 8,959,209.99 × 3,591,330.86
  4. Step 4: Simplify right side
    6,491,990x = 32,175,487,318,307.29
  5. Step 5: Solve for x
    x = 32,175,487,318,307.29/6,491,990
  6. Step 6: Final answer
    x = 4,956,182.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.