Home / 69,413,815.08-104,099,759.82-20,878,784.64

Finding the Fourth Proportional to 69,413,815.08, 104,099,759.82 and 20,878,784.64

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Solution

The fourth proportional to 69,413,815.08, 104,099,759.82 and 20,878,784.64 is: 31,311,871.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,413,815.08 : 104,099,759.82 = 20,878,784.64 : x
  2. Step 2: Convert to fraction form
    69,413,815.08/104,099,759.82 = 20,878,784.64/x
  3. Step 3: Cross multiply
    69,413,815.08x = 104,099,759.82 × 20,878,784.64
  4. Step 4: Simplify right side
    69,413,815.08x = 2,173,476,466,357,505
  5. Step 5: Solve for x
    x = 2,173,476,466,357,505/69,413,815.08
  6. Step 6: Final answer
    x = 31,311,871.62

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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.