Home / 20,839,345.46-31,256,180.48-5,485,349.33

Finding the Fourth Proportional to 20,839,345.46, 31,256,180.48 and 5,485,349.33

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Solution

The fourth proportional to 20,839,345.46, 31,256,180.48 and 5,485,349.33 is: 8,227,277.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,839,345.46 : 31,256,180.48 = 5,485,349.33 : x
  2. Step 2: Convert to fraction form
    20,839,345.46/31,256,180.48 = 5,485,349.33/x
  3. Step 3: Cross multiply
    20,839,345.46x = 31,256,180.48 × 5,485,349.33
  4. Step 4: Simplify right side
    20,839,345.46x = 171,451,068,511,759.56
  5. Step 5: Solve for x
    x = 171,451,068,511,759.56/20,839,345.46
  6. Step 6: Final answer
    x = 8,227,277.05

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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.