Home / 7,222,901.32-9,967,540.14-3,959,656.72

Finding the Fourth Proportional to 7,222,901.32, 9,967,540.14 and 3,959,656.72

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Solution

The fourth proportional to 7,222,901.32, 9,967,540.14 and 3,959,656.72 is: 5,464,291.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,222,901.32 : 9,967,540.14 = 3,959,656.72 : x
  2. Step 2: Convert to fraction form
    7,222,901.32/9,967,540.14 = 3,959,656.72/x
  3. Step 3: Cross multiply
    7,222,901.32x = 9,967,540.14 × 3,959,656.72
  4. Step 4: Simplify right side
    7,222,901.32x = 39,468,037,297,220.74
  5. Step 5: Solve for x
    x = 39,468,037,297,220.74/7,222,901.32
  6. Step 6: Final answer
    x = 5,464,291.36

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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.