Home / 69,203,231.64-103,785,631.92-20,669,579.10

Finding the Fourth Proportional to 69,203,231.64, 103,785,631.92 and 20,669,579.10

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Solution

The fourth proportional to 69,203,231.64, 103,785,631.92 and 20,669,579.10 is: 30,998,629.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,203,231.64 : 103,785,631.92 = 20,669,579.10 : x
  2. Step 2: Convert to fraction form
    69,203,231.64/103,785,631.92 = 20,669,579.10/x
  3. Step 3: Cross multiply
    69,203,231.64x = 103,785,631.92 × 20,669,579.10
  4. Step 4: Simplify right side
    69,203,231.64x = 2,145,205,328,413,925
  5. Step 5: Solve for x
    x = 2,145,205,328,413,925/69,203,231.64
  6. Step 6: Final answer
    x = 30,998,629.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.