Home / 821,268,537.44-1,231,902,820.44-199,479,579.57

Finding the Fourth Proportional to 821,268,537.44, 1,231,902,820.44 and 199,479,579.57

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Solution

The fourth proportional to 821,268,537.44, 1,231,902,820.44 and 199,479,579.57 is: 299,219,372.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,268,537.44 : 1,231,902,820.44 = 199,479,579.57 : x
  2. Step 2: Convert to fraction form
    821,268,537.44/1,231,902,820.44 = 199,479,579.57/x
  3. Step 3: Cross multiply
    821,268,537.44x = 1,231,902,820.44 × 199,479,579.57
  4. Step 4: Simplify right side
    821,268,537.44x = 245,739,456,696,329,984
  5. Step 5: Solve for x
    x = 245,739,456,696,329,984/821,268,537.44
  6. Step 6: Final answer
    x = 299,219,372.83

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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.