Home / 6,439,720.54-9,659,911.68-1,647,451.38

Finding the Fourth Proportional to 6,439,720.54, 9,659,911.68 and 1,647,451.38

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Solution

The fourth proportional to 6,439,720.54, 9,659,911.68 and 1,647,451.38 is: 2,471,261.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,439,720.54 : 9,659,911.68 = 1,647,451.38 : x
  2. Step 2: Convert to fraction form
    6,439,720.54/9,659,911.68 = 1,647,451.38/x
  3. Step 3: Cross multiply
    6,439,720.54x = 9,659,911.68 × 1,647,451.38
  4. Step 4: Simplify right side
    6,439,720.54x = 15,914,234,827,894.12
  5. Step 5: Solve for x
    x = 15,914,234,827,894.12/6,439,720.54
  6. Step 6: Final answer
    x = 2,471,261.72

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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.