Home / 7,231,692.12-9,979,857.60-3,968,810.43

Finding the Fourth Proportional to 7,231,692.12, 9,979,857.60 and 3,968,810.43

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Solution

The fourth proportional to 7,231,692.12, 9,979,857.60 and 3,968,810.43 is: 5,477,025.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,231,692.12 : 9,979,857.60 = 3,968,810.43 : x
  2. Step 2: Convert to fraction form
    7,231,692.12/9,979,857.60 = 3,968,810.43/x
  3. Step 3: Cross multiply
    7,231,692.12x = 9,979,857.60 × 3,968,810.43
  4. Step 4: Simplify right side
    7,231,692.12x = 39,608,162,932,794.77
  5. Step 5: Solve for x
    x = 39,608,162,932,794.77/7,231,692.12
  6. Step 6: Final answer
    x = 5,477,025.61

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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.