Home / 7,231,415.22-9,979,325.82-3,968,284.86

Finding the Fourth Proportional to 7,231,415.22, 9,979,325.82 and 3,968,284.86

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Solution

The fourth proportional to 7,231,415.22, 9,979,325.82 and 3,968,284.86 is: 5,476,218.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,231,415.22 : 9,979,325.82 = 3,968,284.86 : x
  2. Step 2: Convert to fraction form
    7,231,415.22/9,979,325.82 = 3,968,284.86/x
  3. Step 3: Cross multiply
    7,231,415.22x = 9,979,325.82 × 3,968,284.86
  4. Step 4: Simplify right side
    7,231,415.22x = 39,600,807,564,513.09
  5. Step 5: Solve for x
    x = 39,600,807,564,513.09/7,231,415.22
  6. Step 6: Final answer
    x = 5,476,218.19

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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.