Home / 449,520,530,021.72-674,320,434,199.40-126,826,167,414.75

Finding the Fourth Proportional to 449,520,530,021.72, 674,320,434,199.40 and 126,826,167,414.75

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Solution

The fourth proportional to 449,520,530,021.72, 674,320,434,199.40 and 126,826,167,414.75 is: 190,250,434,779.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,520,530,021.72 : 674,320,434,199.40 = 126,826,167,414.75 : x
  2. Step 2: Convert to fraction form
    449,520,530,021.72/674,320,434,199.40 = 126,826,167,414.75/x
  3. Step 3: Cross multiply
    449,520,530,021.72x = 674,320,434,199.40 × 126,826,167,414.75
  4. Step 4: Simplify right side
    449,520,530,021.72x = 85,521,476,278,960,026,288,128
  5. Step 5: Solve for x
    x = 85,521,476,278,960,026,288,128/449,520,530,021.72
  6. Step 6: Final answer
    x = 190,250,434,779.54

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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.