Home / 6,499,481.45-8,978,627.18-5,191,015.59

Finding the Fourth Proportional to 6,499,481.45, 8,978,627.18 and 5,191,015.59

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Solution

The fourth proportional to 6,499,481.45, 8,978,627.18 and 5,191,015.59 is: 7,171,063.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,499,481.45 : 8,978,627.18 = 5,191,015.59 : x
  2. Step 2: Convert to fraction form
    6,499,481.45/8,978,627.18 = 5,191,015.59/x
  3. Step 3: Cross multiply
    6,499,481.45x = 8,978,627.18 × 5,191,015.59
  4. Step 4: Simplify right side
    6,499,481.45x = 46,608,193,642,222.66
  5. Step 5: Solve for x
    x = 46,608,193,642,222.66/6,499,481.45
  6. Step 6: Final answer
    x = 7,171,063.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.