Home / 8,511,560.40-12,767,340.60-3,120,200.40

Finding the Fourth Proportional to 8,511,560.40, 12,767,340.60 and 3,120,200.40

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Solution

The fourth proportional to 8,511,560.40, 12,767,340.60 and 3,120,200.40 is: 4,680,300.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,511,560.40 : 12,767,340.60 = 3,120,200.40 : x
  2. Step 2: Convert to fraction form
    8,511,560.40/12,767,340.60 = 3,120,200.40/x
  3. Step 3: Cross multiply
    8,511,560.40x = 12,767,340.60 × 3,120,200.40
  4. Step 4: Simplify right side
    8,511,560.40x = 39,836,661,247,056.23
  5. Step 5: Solve for x
    x = 39,836,661,247,056.23/8,511,560.40
  6. Step 6: Final answer
    x = 4,680,300.60

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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.