Home / 85,451,624.20-128,177,437.82-20,754,993.26

Finding the Fourth Proportional to 85,451,624.20, 128,177,437.82 and 20,754,993.26

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Solution

The fourth proportional to 85,451,624.20, 128,177,437.82 and 20,754,993.26 is: 31,132,490.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,451,624.20 : 128,177,437.82 = 20,754,993.26 : x
  2. Step 2: Convert to fraction form
    85,451,624.20/128,177,437.82 = 20,754,993.26/x
  3. Step 3: Cross multiply
    85,451,624.20x = 128,177,437.82 × 20,754,993.26
  4. Step 4: Simplify right side
    85,451,624.20x = 2,660,321,858,254,837.50
  5. Step 5: Solve for x
    x = 2,660,321,858,254,837.50/85,451,624.20
  6. Step 6: Final answer
    x = 31,132,490.26

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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.