Home / 279,839,322.18-419,743,849.50-85,751,297.82

Finding the Fourth Proportional to 279,839,322.18, 419,743,849.50 and 85,751,297.82

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Solution

The fourth proportional to 279,839,322.18, 419,743,849.50 and 85,751,297.82 is: 128,622,309.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,839,322.18 : 419,743,849.50 = 85,751,297.82 : x
  2. Step 2: Convert to fraction form
    279,839,322.18/419,743,849.50 = 85,751,297.82/x
  3. Step 3: Cross multiply
    279,839,322.18x = 419,743,849.50 × 85,751,297.82
  4. Step 4: Simplify right side
    279,839,322.18x = 35,993,579,846,587,756
  5. Step 5: Solve for x
    x = 35,993,579,846,587,756/279,839,322.18
  6. Step 6: Final answer
    x = 128,622,309.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.