Home / 21,335,029.17-31,989,584.41-8,365,641.56

Finding the Fourth Proportional to 21,335,029.17, 31,989,584.41 and 8,365,641.56

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Solution

The fourth proportional to 21,335,029.17, 31,989,584.41 and 8,365,641.56 is: 12,543,380.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,335,029.17 : 31,989,584.41 = 8,365,641.56 : x
  2. Step 2: Convert to fraction form
    21,335,029.17/31,989,584.41 = 8,365,641.56/x
  3. Step 3: Cross multiply
    21,335,029.17x = 31,989,584.41 × 8,365,641.56
  4. Step 4: Simplify right side
    21,335,029.17x = 267,613,396,725,455.38
  5. Step 5: Solve for x
    x = 267,613,396,725,455.38/21,335,029.17
  6. Step 6: Final answer
    x = 12,543,380.87

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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.