Home / 3,120,471.20-4,680,706.80-2,649,245.60

Finding the Fourth Proportional to 3,120,471.20, 4,680,706.80 and 2,649,245.60

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Solution

The fourth proportional to 3,120,471.20, 4,680,706.80 and 2,649,245.60 is: 3,973,868.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,120,471.20 : 4,680,706.80 = 2,649,245.60 : x
  2. Step 2: Convert to fraction form
    3,120,471.20/4,680,706.80 = 2,649,245.60/x
  3. Step 3: Cross multiply
    3,120,471.20x = 4,680,706.80 × 2,649,245.60
  4. Step 4: Simplify right side
    3,120,471.20x = 12,400,341,894,790.08
  5. Step 5: Solve for x
    x = 12,400,341,894,790.08/3,120,471.20
  6. Step 6: Final answer
    x = 3,973,868.40

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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.