Home / 8,435,455.20-12,653,182.80-6,179,378.40

Finding the Fourth Proportional to 8,435,455.20, 12,653,182.80 and 6,179,378.40

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Solution

The fourth proportional to 8,435,455.20, 12,653,182.80 and 6,179,378.40 is: 9,269,067.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,435,455.20 : 12,653,182.80 = 6,179,378.40 : x
  2. Step 2: Convert to fraction form
    8,435,455.20/12,653,182.80 = 6,179,378.40/x
  3. Step 3: Cross multiply
    8,435,455.20x = 12,653,182.80 × 6,179,378.40
  4. Step 4: Simplify right side
    8,435,455.20x = 78,188,804,485,571.53
  5. Step 5: Solve for x
    x = 78,188,804,485,571.53/8,435,455.20
  6. Step 6: Final answer
    x = 9,269,067.60

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Similar ratio
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1.5x scale

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.