Home / 71,511,508.09-107,268,246.27-20,393,532.37

Finding the Fourth Proportional to 71,511,508.09, 107,268,246.27 and 20,393,532.37

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Solution

The fourth proportional to 71,511,508.09, 107,268,246.27 and 20,393,532.37 is: 30,590,579.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,511,508.09 : 107,268,246.27 = 20,393,532.37 : x
  2. Step 2: Convert to fraction form
    71,511,508.09/107,268,246.27 = 20,393,532.37/x
  3. Step 3: Cross multiply
    71,511,508.09x = 107,268,246.27 × 20,393,532.37
  4. Step 4: Simplify right side
    71,511,508.09x = 2,187,578,452,580,376.75
  5. Step 5: Solve for x
    x = 2,187,578,452,580,376.75/71,511,508.09
  6. Step 6: Final answer
    x = 30,590,579.21

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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.