Home / 1,331,235,650.82-1,992,967,964.52-776,839,198.98

Finding the Fourth Proportional to 1,331,235,650.82, 1,992,967,964.52 and 776,839,198.98

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Solution

The fourth proportional to 1,331,235,650.82, 1,992,967,964.52 and 776,839,198.98 is: 1,162,991,417.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,331,235,650.82 : 1,992,967,964.52 = 776,839,198.98 : x
  2. Step 2: Convert to fraction form
    1,331,235,650.82/1,992,967,964.52 = 776,839,198.98/x
  3. Step 3: Cross multiply
    1,331,235,650.82x = 1,992,967,964.52 × 776,839,198.98
  4. Step 4: Simplify right side
    1,331,235,650.82x = 1,548,215,637,150,517,760
  5. Step 5: Solve for x
    x = 1,548,215,637,150,517,760/1,331,235,650.82
  6. Step 6: Final answer
    x = 1,162,991,417.93

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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.