Home / 4,128,220.20-6,192,330.30-3,120,450.60

Finding the Fourth Proportional to 4,128,220.20, 6,192,330.30 and 3,120,450.60

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Solution

The fourth proportional to 4,128,220.20, 6,192,330.30 and 3,120,450.60 is: 4,680,675.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,128,220.20 : 6,192,330.30 = 3,120,450.60 : x
  2. Step 2: Convert to fraction form
    4,128,220.20/6,192,330.30 = 3,120,450.60/x
  3. Step 3: Cross multiply
    4,128,220.20x = 6,192,330.30 × 3,120,450.60
  4. Step 4: Simplify right side
    4,128,220.20x = 19,322,860,800,033.18
  5. Step 5: Solve for x
    x = 19,322,860,800,033.18/4,128,220.20
  6. Step 6: Final answer
    x = 4,680,675.90

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Double scale
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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.