Home / 86,339,729.40-129,493,005.30-25,757,431.80

Finding the Fourth Proportional to 86,339,729.40, 129,493,005.30 and 25,757,431.80

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Solution

The fourth proportional to 86,339,729.40, 129,493,005.30 and 25,757,431.80 is: 38,631,198.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,339,729.40 : 129,493,005.30 = 25,757,431.80 : x
  2. Step 2: Convert to fraction form
    86,339,729.40/129,493,005.30 = 25,757,431.80/x
  3. Step 3: Cross multiply
    86,339,729.40x = 129,493,005.30 × 25,757,431.80
  4. Step 4: Simplify right side
    86,339,729.40x = 3,335,407,252,591,788.50
  5. Step 5: Solve for x
    x = 3,335,407,252,591,788.50/86,339,729.40
  6. Step 6: Final answer
    x = 38,631,198.82

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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.