Home / 21,335,231.62-31,989,887.79-8,365,844.77

Finding the Fourth Proportional to 21,335,231.62, 31,989,887.79 and 8,365,844.77

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Solution

The fourth proportional to 21,335,231.62, 31,989,887.79 and 8,365,844.77 is: 12,543,685.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,335,231.62 : 31,989,887.79 = 8,365,844.77 : x
  2. Step 2: Convert to fraction form
    21,335,231.62/31,989,887.79 = 8,365,844.77/x
  3. Step 3: Cross multiply
    21,335,231.62x = 31,989,887.79 × 8,365,844.77
  4. Step 4: Simplify right side
    21,335,231.62x = 267,622,435,419,029.12
  5. Step 5: Solve for x
    x = 267,622,435,419,029.12/21,335,231.62
  6. Step 6: Final answer
    x = 12,543,685.50

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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.