Home / 71,511,507.09-107,268,244.77-20,393,531.37

Finding the Fourth Proportional to 71,511,507.09, 107,268,244.77 and 20,393,531.37

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Solution

The fourth proportional to 71,511,507.09, 107,268,244.77 and 20,393,531.37 is: 30,590,577.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,511,507.09 : 107,268,244.77 = 20,393,531.37 : x
  2. Step 2: Convert to fraction form
    71,511,507.09/107,268,244.77 = 20,393,531.37/x
  3. Step 3: Cross multiply
    71,511,507.09x = 107,268,244.77 × 20,393,531.37
  4. Step 4: Simplify right side
    71,511,507.09x = 2,187,578,314,721,833.50
  5. Step 5: Solve for x
    x = 2,187,578,314,721,833.50/71,511,507.09
  6. Step 6: Final answer
    x = 30,590,577.71

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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.