Home / 100,240,845.84-138,325,405.82-55,589,121.26

Finding the Fourth Proportional to 100,240,845.84, 138,325,405.82 and 55,589,121.26

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Solution

The fourth proportional to 100,240,845.84, 138,325,405.82 and 55,589,121.26 is: 76,709,126.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,240,845.84 : 138,325,405.82 = 55,589,121.26 : x
  2. Step 2: Convert to fraction form
    100,240,845.84/138,325,405.82 = 55,589,121.26/x
  3. Step 3: Cross multiply
    100,240,845.84x = 138,325,405.82 × 55,589,121.26
  4. Step 4: Simplify right side
    100,240,845.84x = 7,689,387,757,466,689
  5. Step 5: Solve for x
    x = 7,689,387,757,466,689/100,240,845.84
  6. Step 6: Final answer
    x = 76,709,126.83

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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.