Home / 3,929,345.66-5,419,574.08-3,469,649.20

Finding the Fourth Proportional to 3,929,345.66, 5,419,574.08 and 3,469,649.20

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Solution

The fourth proportional to 3,929,345.66, 5,419,574.08 and 3,469,649.20 is: 4,785,534.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,929,345.66 : 5,419,574.08 = 3,469,649.20 : x
  2. Step 2: Convert to fraction form
    3,929,345.66/5,419,574.08 = 3,469,649.20/x
  3. Step 3: Cross multiply
    3,929,345.66x = 5,419,574.08 × 3,469,649.20
  4. Step 4: Simplify right side
    3,929,345.66x = 18,804,020,848,789.68
  5. Step 5: Solve for x
    x = 18,804,020,848,789.68/3,929,345.66
  6. Step 6: Final answer
    x = 4,785,534.91

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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.