Home / 21,438,833.90-32,140,163.66-9,299,157.75

Finding the Fourth Proportional to 21,438,833.90, 32,140,163.66 and 9,299,157.75

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Solution

The fourth proportional to 21,438,833.90, 32,140,163.66 and 9,299,157.75 is: 13,940,891.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,438,833.90 : 32,140,163.66 = 9,299,157.75 : x
  2. Step 2: Convert to fraction form
    21,438,833.90/32,140,163.66 = 9,299,157.75/x
  3. Step 3: Cross multiply
    21,438,833.90x = 32,140,163.66 × 9,299,157.75
  4. Step 4: Simplify right side
    21,438,833.90x = 298,876,451,938,661.56
  5. Step 5: Solve for x
    x = 298,876,451,938,661.56/21,438,833.90
  6. Step 6: Final answer
    x = 13,940,891.25

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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.