Home / 259,922,631-389,801,583.48-85,005,244.56

Finding the Fourth Proportional to 259,922,631, 389,801,583.48 and 85,005,244.56

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Solution

The fourth proportional to 259,922,631, 389,801,583.48 and 85,005,244.56 is: 127,480,930.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,922,631 : 389,801,583.48 = 85,005,244.56 : x
  2. Step 2: Convert to fraction form
    259,922,631/389,801,583.48 = 85,005,244.56/x
  3. Step 3: Cross multiply
    259,922,631x = 389,801,583.48 × 85,005,244.56
  4. Step 4: Simplify right side
    259,922,631x = 33,135,178,933,592,660
  5. Step 5: Solve for x
    x = 33,135,178,933,592,660/259,922,631
  6. Step 6: Final answer
    x = 127,480,930.79

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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.