Home / 3,990,546-5,507,089.56-2,179,826.64

Finding the Fourth Proportional to 3,990,546, 5,507,089.56 and 2,179,826.64

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Solution

The fourth proportional to 3,990,546, 5,507,089.56 and 2,179,826.64 is: 3,008,235.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,990,546 : 5,507,089.56 = 2,179,826.64 : x
  2. Step 2: Convert to fraction form
    3,990,546/5,507,089.56 = 2,179,826.64/x
  3. Step 3: Cross multiply
    3,990,546x = 5,507,089.56 × 2,179,826.64
  4. Step 4: Simplify right side
    3,990,546x = 12,004,500,531,753.88
  5. Step 5: Solve for x
    x = 12,004,500,531,753.88/3,990,546
  6. Step 6: Final answer
    x = 3,008,235.10

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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.