Home / 8,691,415.20-13,037,122.80-7,879,600.80

Finding the Fourth Proportional to 8,691,415.20, 13,037,122.80 and 7,879,600.80

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Solution

The fourth proportional to 8,691,415.20, 13,037,122.80 and 7,879,600.80 is: 11,819,401.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,691,415.20 : 13,037,122.80 = 7,879,600.80 : x
  2. Step 2: Convert to fraction form
    8,691,415.20/13,037,122.80 = 7,879,600.80/x
  3. Step 3: Cross multiply
    8,691,415.20x = 13,037,122.80 × 7,879,600.80
  4. Step 4: Simplify right side
    8,691,415.20x = 102,727,323,244,578.25
  5. Step 5: Solve for x
    x = 102,727,323,244,578.25/8,691,415.20
  6. Step 6: Final answer
    x = 11,819,401.20

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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.