Home / 6,979,900.20-10,478,379.60-3,949,374.30

Finding the Fourth Proportional to 6,979,900.20, 10,478,379.60 and 3,949,374.30

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Solution

The fourth proportional to 6,979,900.20, 10,478,379.60 and 3,949,374.30 is: 5,928,887.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,979,900.20 : 10,478,379.60 = 3,949,374.30 : x
  2. Step 2: Convert to fraction form
    6,979,900.20/10,478,379.60 = 3,949,374.30/x
  3. Step 3: Cross multiply
    6,979,900.20x = 10,478,379.60 × 3,949,374.30
  4. Step 4: Simplify right side
    6,979,900.20x = 41,383,043,097,884.27
  5. Step 5: Solve for x
    x = 41,383,043,097,884.27/6,979,900.20
  6. Step 6: Final answer
    x = 5,928,887.51

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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.