Home / 128,278,255.82-192,397,942.01-34,912,502.94

Finding the Fourth Proportional to 128,278,255.82, 192,397,942.01 and 34,912,502.94

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Solution

The fourth proportional to 128,278,255.82, 192,397,942.01 and 34,912,502.94 is: 52,363,463.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,278,255.82 : 192,397,942.01 = 34,912,502.94 : x
  2. Step 2: Convert to fraction form
    128,278,255.82/192,397,942.01 = 34,912,502.94/x
  3. Step 3: Cross multiply
    128,278,255.82x = 192,397,942.01 × 34,912,502.94
  4. Step 4: Simplify right side
    128,278,255.82x = 6,717,093,715,899,511
  5. Step 5: Solve for x
    x = 6,717,093,715,899,511/128,278,255.82
  6. Step 6: Final answer
    x = 52,363,463.11

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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.