Home / 8,253,187.20-12,379,780.80-6,363,619.20

Finding the Fourth Proportional to 8,253,187.20, 12,379,780.80 and 6,363,619.20

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Solution

The fourth proportional to 8,253,187.20, 12,379,780.80 and 6,363,619.20 is: 9,545,428.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,253,187.20 : 12,379,780.80 = 6,363,619.20 : x
  2. Step 2: Convert to fraction form
    8,253,187.20/12,379,780.80 = 6,363,619.20/x
  3. Step 3: Cross multiply
    8,253,187.20x = 12,379,780.80 × 6,363,619.20
  4. Step 4: Simplify right side
    8,253,187.20x = 78,780,210,790,671.36
  5. Step 5: Solve for x
    x = 78,780,210,790,671.36/8,253,187.20
  6. Step 6: Final answer
    x = 9,545,428.80

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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.