Home / 800,775,251.70-1,201,162,877.55-628,782,573.30

Finding the Fourth Proportional to 800,775,251.70, 1,201,162,877.55 and 628,782,573.30

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Solution

The fourth proportional to 800,775,251.70, 1,201,162,877.55 and 628,782,573.30 is: 943,173,859.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    800,775,251.70 : 1,201,162,877.55 = 628,782,573.30 : x
  2. Step 2: Convert to fraction form
    800,775,251.70/1,201,162,877.55 = 628,782,573.30/x
  3. Step 3: Cross multiply
    800,775,251.70x = 1,201,162,877.55 × 628,782,573.30
  4. Step 4: Simplify right side
    800,775,251.70x = 755,270,285,098,321,664
  5. Step 5: Solve for x
    x = 755,270,285,098,321,664/800,775,251.70
  6. Step 6: Final answer
    x = 943,173,859.95

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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.