Home / 1,188,128,908.40-1,782,193,362.60-1,086,008,255.60

Finding the Fourth Proportional to 1,188,128,908.40, 1,782,193,362.60 and 1,086,008,255.60

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Solution

The fourth proportional to 1,188,128,908.40, 1,782,193,362.60 and 1,086,008,255.60 is: 1,629,012,383.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,128,908.40 : 1,782,193,362.60 = 1,086,008,255.60 : x
  2. Step 2: Convert to fraction form
    1,188,128,908.40/1,782,193,362.60 = 1,086,008,255.60/x
  3. Step 3: Cross multiply
    1,188,128,908.40x = 1,782,193,362.60 × 1,086,008,255.60
  4. Step 4: Simplify right side
    1,188,128,908.40x = 1,935,476,704,859,123,968
  5. Step 5: Solve for x
    x = 1,935,476,704,859,123,968/1,188,128,908.40
  6. Step 6: Final answer
    x = 1,629,012,383.40

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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.