Home / 7,810,879.87-11,718,190.42-3,259,396.78

Finding the Fourth Proportional to 7,810,879.87, 11,718,190.42 and 3,259,396.78

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Solution

The fourth proportional to 7,810,879.87, 11,718,190.42 and 3,259,396.78 is: 4,889,875.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,810,879.87 : 11,718,190.42 = 3,259,396.78 : x
  2. Step 2: Convert to fraction form
    7,810,879.87/11,718,190.42 = 3,259,396.78/x
  3. Step 3: Cross multiply
    7,810,879.87x = 11,718,190.42 × 3,259,396.78
  4. Step 4: Simplify right side
    7,810,879.87x = 38,194,232,084,930.88
  5. Step 5: Solve for x
    x = 38,194,232,084,930.88/7,810,879.87
  6. Step 6: Final answer
    x = 4,889,875.75

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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.