Home / 6,513,891.20-9,770,836.80-4,120,438.40

Finding the Fourth Proportional to 6,513,891.20, 9,770,836.80 and 4,120,438.40

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Solution

The fourth proportional to 6,513,891.20, 9,770,836.80 and 4,120,438.40 is: 6,180,657.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,513,891.20 : 9,770,836.80 = 4,120,438.40 : x
  2. Step 2: Convert to fraction form
    6,513,891.20/9,770,836.80 = 4,120,438.40/x
  3. Step 3: Cross multiply
    6,513,891.20x = 9,770,836.80 × 4,120,438.40
  4. Step 4: Simplify right side
    6,513,891.20x = 40,260,131,150,853.12
  5. Step 5: Solve for x
    x = 40,260,131,150,853.12/6,513,891.20
  6. Step 6: Final answer
    x = 6,180,657.60

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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.