Home / 3,990,846-5,507,488.44-2,180,126.64

Finding the Fourth Proportional to 3,990,846, 5,507,488.44 and 2,180,126.64

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Solution

The fourth proportional to 3,990,846, 5,507,488.44 and 2,180,126.64 is: 3,008,640.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,990,846 : 5,507,488.44 = 2,180,126.64 : x
  2. Step 2: Convert to fraction form
    3,990,846/5,507,488.44 = 2,180,126.64/x
  3. Step 3: Cross multiply
    3,990,846x = 5,507,488.44 × 2,180,126.64
  4. Step 4: Simplify right side
    3,990,846x = 12,007,022,267,536.04
  5. Step 5: Solve for x
    x = 12,007,022,267,536.04/3,990,846
  6. Step 6: Final answer
    x = 3,008,640.84

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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.