Home / 257,391,123,253.15-355,199,808,067.90-141,647,882,887.49

Finding the Fourth Proportional to 257,391,123,253.15, 355,199,808,067.90 and 141,647,882,887.49

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Solution

The fourth proportional to 257,391,123,253.15, 355,199,808,067.90 and 141,647,882,887.49 is: 195,474,110,291.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,391,123,253.15 : 355,199,808,067.90 = 141,647,882,887.49 : x
  2. Step 2: Convert to fraction form
    257,391,123,253.15/355,199,808,067.90 = 141,647,882,887.49/x
  3. Step 3: Cross multiply
    257,391,123,253.15x = 355,199,808,067.90 × 141,647,882,887.49
  4. Step 4: Simplify right side
    257,391,123,253.15x = 50,313,300,814,860,822,511,616
  5. Step 5: Solve for x
    x = 50,313,300,814,860,822,511,616/257,391,123,253.15
  6. Step 6: Final answer
    x = 195,474,110,291.58

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1.5x scale

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.