Home / 311,086,032,904.43-429,367,787,911.11-189,124,852,167.49

Finding the Fourth Proportional to 311,086,032,904.43, 429,367,787,911.11 and 189,124,852,167.49

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Solution

The fourth proportional to 311,086,032,904.43, 429,367,787,911.11 and 189,124,852,167.49 is: 261,034,282,561.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,086,032,904.43 : 429,367,787,911.11 = 189,124,852,167.49 : x
  2. Step 2: Convert to fraction form
    311,086,032,904.43/429,367,787,911.11 = 189,124,852,167.49/x
  3. Step 3: Cross multiply
    311,086,032,904.43x = 429,367,787,911.11 × 189,124,852,167.49
  4. Step 4: Simplify right side
    311,086,032,904.43x = 81,204,119,414,170,867,204,096
  5. Step 5: Solve for x
    x = 81,204,119,414,170,867,204,096/311,086,032,904.43
  6. Step 6: Final answer
    x = 261,034,282,561.69

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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.