Home / 7,231,691.09-9,979,856.19-3,968,809.40

Finding the Fourth Proportional to 7,231,691.09, 9,979,856.19 and 3,968,809.40

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Solution

The fourth proportional to 7,231,691.09, 9,979,856.19 and 3,968,809.40 is: 5,477,024.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,231,691.09 : 9,979,856.19 = 3,968,809.40 : x
  2. Step 2: Convert to fraction form
    7,231,691.09/9,979,856.19 = 3,968,809.40/x
  3. Step 3: Cross multiply
    7,231,691.09x = 9,979,856.19 × 3,968,809.40
  4. Step 4: Simplify right side
    7,231,691.09x = 39,608,147,007,620.91
  5. Step 5: Solve for x
    x = 39,608,147,007,620.91/7,231,691.09
  6. Step 6: Final answer
    x = 5,477,024.19

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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.