Home / 342,120,911.72-472,136,815.85-193,438,838.97

Finding the Fourth Proportional to 342,120,911.72, 472,136,815.85 and 193,438,838.97

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Solution

The fourth proportional to 342,120,911.72, 472,136,815.85 and 193,438,838.97 is: 266,951,227.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,120,911.72 : 472,136,815.85 = 193,438,838.97 : x
  2. Step 2: Convert to fraction form
    342,120,911.72/472,136,815.85 = 193,438,838.97/x
  3. Step 3: Cross multiply
    342,120,911.72x = 472,136,815.85 × 193,438,838.97
  4. Step 4: Simplify right side
    342,120,911.72x = 91,329,597,492,049,504
  5. Step 5: Solve for x
    x = 91,329,597,492,049,504/342,120,911.72
  6. Step 6: Final answer
    x = 266,951,227.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.