Home / 7,121,433.45-9,827,564.86-3,858,329.28

Finding the Fourth Proportional to 7,121,433.45, 9,827,564.86 and 3,858,329.28

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Solution

The fourth proportional to 7,121,433.45, 9,827,564.86 and 3,858,329.28 is: 5,324,487.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,121,433.45 : 9,827,564.86 = 3,858,329.28 : x
  2. Step 2: Convert to fraction form
    7,121,433.45/9,827,564.86 = 3,858,329.28/x
  3. Step 3: Cross multiply
    7,121,433.45x = 9,827,564.86 × 3,858,329.28
  4. Step 4: Simplify right side
    7,121,433.45x = 37,917,981,250,437.09
  5. Step 5: Solve for x
    x = 37,917,981,250,437.09/7,121,433.45
  6. Step 6: Final answer
    x = 5,324,487.20

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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.