Home / 154,647,635.38-231,818,227.80-72,619,675.54

Finding the Fourth Proportional to 154,647,635.38, 231,818,227.80 and 72,619,675.54

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Solution

The fourth proportional to 154,647,635.38, 231,818,227.80 and 72,619,675.54 is: 108,857,561.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,647,635.38 : 231,818,227.80 = 72,619,675.54 : x
  2. Step 2: Convert to fraction form
    154,647,635.38/231,818,227.80 = 72,619,675.54/x
  3. Step 3: Cross multiply
    154,647,635.38x = 231,818,227.80 × 72,619,675.54
  4. Step 4: Simplify right side
    154,647,635.38x = 16,834,564,487,093,810
  5. Step 5: Solve for x
    x = 16,834,564,487,093,810/154,647,635.38
  6. Step 6: Final answer
    x = 108,857,561.55

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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.