Home / 13,286,639.80-18,331,741.32-8,647,254.64

Finding the Fourth Proportional to 13,286,639.80, 18,331,741.32 and 8,647,254.64

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Solution

The fourth proportional to 13,286,639.80, 18,331,741.32 and 8,647,254.64 is: 11,930,724.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,286,639.80 : 18,331,741.32 = 8,647,254.64 : x
  2. Step 2: Convert to fraction form
    13,286,639.80/18,331,741.32 = 8,647,254.64/x
  3. Step 3: Cross multiply
    13,286,639.80x = 18,331,741.32 × 8,647,254.64
  4. Step 4: Simplify right side
    13,286,639.80x = 158,519,235,188,649.75
  5. Step 5: Solve for x
    x = 158,519,235,188,649.75/13,286,639.80
  6. Step 6: Final answer
    x = 11,930,724.21

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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.