Home / 20,363,087.64-28,099,398.78-11,989,135.56

Finding the Fourth Proportional to 20,363,087.64, 28,099,398.78 and 11,989,135.56

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Solution

The fourth proportional to 20,363,087.64, 28,099,398.78 and 11,989,135.56 is: 16,544,028.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,363,087.64 : 28,099,398.78 = 11,989,135.56 : x
  2. Step 2: Convert to fraction form
    20,363,087.64/28,099,398.78 = 11,989,135.56/x
  3. Step 3: Cross multiply
    20,363,087.64x = 28,099,398.78 × 11,989,135.56
  4. Step 4: Simplify right side
    20,363,087.64x = 336,887,501,127,918.62
  5. Step 5: Solve for x
    x = 336,887,501,127,918.62/20,363,087.64
  6. Step 6: Final answer
    x = 16,544,028.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.