Home / 3,998,668.78-5,518,025.67-2,280,342.34

Finding the Fourth Proportional to 3,998,668.78, 5,518,025.67 and 2,280,342.34

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Solution

The fourth proportional to 3,998,668.78, 5,518,025.67 and 2,280,342.34 is: 3,146,794.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,998,668.78 : 5,518,025.67 = 2,280,342.34 : x
  2. Step 2: Convert to fraction form
    3,998,668.78/5,518,025.67 = 2,280,342.34/x
  3. Step 3: Cross multiply
    3,998,668.78x = 5,518,025.67 × 2,280,342.34
  4. Step 4: Simplify right side
    3,998,668.78x = 12,582,987,568,507.87
  5. Step 5: Solve for x
    x = 12,582,987,568,507.87/3,998,668.78
  6. Step 6: Final answer
    x = 3,146,794.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.