Home / 6,439,991.85-9,659,919.74-1,647,643.05

Finding the Fourth Proportional to 6,439,991.85, 9,659,919.74 and 1,647,643.05

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Solution

The fourth proportional to 6,439,991.85, 9,659,919.74 and 1,647,643.05 is: 2,471,447.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,439,991.85 : 9,659,919.74 = 1,647,643.05 : x
  2. Step 2: Convert to fraction form
    6,439,991.85/9,659,919.74 = 1,647,643.05/x
  3. Step 3: Cross multiply
    6,439,991.85x = 9,659,919.74 × 1,647,643.05
  4. Step 4: Simplify right side
    6,439,991.85x = 15,916,099,614,930.59
  5. Step 5: Solve for x
    x = 15,916,099,614,930.59/6,439,991.85
  6. Step 6: Final answer
    x = 2,471,447.17

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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.