Home / 3,993,998.64-5,511,714.48-2,158,455.84

Finding the Fourth Proportional to 3,993,998.64, 5,511,714.48 and 2,158,455.84

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Solution

The fourth proportional to 3,993,998.64, 5,511,714.48 and 2,158,455.84 is: 2,978,667.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,993,998.64 : 5,511,714.48 = 2,158,455.84 : x
  2. Step 2: Convert to fraction form
    3,993,998.64/5,511,714.48 = 2,158,455.84/x
  3. Step 3: Cross multiply
    3,993,998.64x = 5,511,714.48 × 2,158,455.84
  4. Step 4: Simplify right side
    3,993,998.64x = 11,896,792,307,768.56
  5. Step 5: Solve for x
    x = 11,896,792,307,768.56/3,993,998.64
  6. Step 6: Final answer
    x = 2,978,667.09

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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.