Home / 131,040,042.80-196,560,064.20-129,339,431.60

Finding the Fourth Proportional to 131,040,042.80, 196,560,064.20 and 129,339,431.60

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Solution

The fourth proportional to 131,040,042.80, 196,560,064.20 and 129,339,431.60 is: 194,009,147.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,040,042.80 : 196,560,064.20 = 129,339,431.60 : x
  2. Step 2: Convert to fraction form
    131,040,042.80/196,560,064.20 = 129,339,431.60/x
  3. Step 3: Cross multiply
    131,040,042.80x = 196,560,064.20 × 129,339,431.60
  4. Step 4: Simplify right side
    131,040,042.80x = 25,422,966,978,887,508
  5. Step 5: Solve for x
    x = 25,422,966,978,887,508/131,040,042.80
  6. Step 6: Final answer
    x = 194,009,147.40

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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.