Home / 6,979,967.20-10,478,480.10-3,949,441.30

Finding the Fourth Proportional to 6,979,967.20, 10,478,480.10 and 3,949,441.30

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Solution

The fourth proportional to 6,979,967.20, 10,478,480.10 and 3,949,441.30 is: 5,928,988.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,979,967.20 : 10,478,480.10 = 3,949,441.30 : x
  2. Step 2: Convert to fraction form
    6,979,967.20/10,478,480.10 = 3,949,441.30/x
  3. Step 3: Cross multiply
    6,979,967.20x = 10,478,480.10 × 3,949,441.30
  4. Step 4: Simplify right side
    6,979,967.20x = 41,384,142,068,168.12
  5. Step 5: Solve for x
    x = 41,384,142,068,168.12/6,979,967.20
  6. Step 6: Final answer
    x = 5,928,988.04

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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.