Home / 6,979,975.20-10,478,492.10-3,949,449.30

Finding the Fourth Proportional to 6,979,975.20, 10,478,492.10 and 3,949,449.30

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Solution

The fourth proportional to 6,979,975.20, 10,478,492.10 and 3,949,449.30 is: 5,929,000.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,979,975.20 : 10,478,492.10 = 3,949,449.30 : x
  2. Step 2: Convert to fraction form
    6,979,975.20/10,478,492.10 = 3,949,449.30/x
  3. Step 3: Cross multiply
    6,979,975.20x = 10,478,492.10 × 3,949,449.30
  4. Step 4: Simplify right side
    6,979,975.20x = 41,384,273,289,400.52
  5. Step 5: Solve for x
    x = 41,384,273,289,400.52/6,979,975.20
  6. Step 6: Final answer
    x = 5,929,000.05

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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.