Home / 691,093,028.78-1,036,633,290.75-218,392,149.73

Finding the Fourth Proportional to 691,093,028.78, 1,036,633,290.75 and 218,392,149.73

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Solution

The fourth proportional to 691,093,028.78, 1,036,633,290.75 and 218,392,149.73 is: 327,586,248.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,093,028.78 : 1,036,633,290.75 = 218,392,149.73 : x
  2. Step 2: Convert to fraction form
    691,093,028.78/1,036,633,290.75 = 218,392,149.73/x
  3. Step 3: Cross multiply
    691,093,028.78x = 1,036,633,290.75 × 218,392,149.73
  4. Step 4: Simplify right side
    691,093,028.78x = 226,392,572,845,439,040
  5. Step 5: Solve for x
    x = 226,392,572,845,439,040/691,093,028.78
  6. Step 6: Final answer
    x = 327,586,248.76

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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.