Home / 1,192,821,589.31-1,788,633,765.42-694,992,986.94

Finding the Fourth Proportional to 1,192,821,589.31, 1,788,633,765.42 and 694,992,986.94

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Solution

The fourth proportional to 1,192,821,589.31, 1,788,633,765.42 and 694,992,986.94 is: 1,042,140,697.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,192,821,589.31 : 1,788,633,765.42 = 694,992,986.94 : x
  2. Step 2: Convert to fraction form
    1,192,821,589.31/1,788,633,765.42 = 694,992,986.94/x
  3. Step 3: Cross multiply
    1,192,821,589.31x = 1,788,633,765.42 × 694,992,986.94
  4. Step 4: Simplify right side
    1,192,821,589.31x = 1,243,087,923,179,013,120
  5. Step 5: Solve for x
    x = 1,243,087,923,179,013,120/1,192,821,589.31
  6. Step 6: Final answer
    x = 1,042,140,697.59

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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.