Home / 72,311,452.84-108,467,144.70-18,458,747.56

Finding the Fourth Proportional to 72,311,452.84, 108,467,144.70 and 18,458,747.56

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Solution

The fourth proportional to 72,311,452.84, 108,467,144.70 and 18,458,747.56 is: 27,688,112.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,311,452.84 : 108,467,144.70 = 18,458,747.56 : x
  2. Step 2: Convert to fraction form
    72,311,452.84/108,467,144.70 = 18,458,747.56/x
  3. Step 3: Cross multiply
    72,311,452.84x = 108,467,144.70 × 18,458,747.56
  4. Step 4: Simplify right side
    72,311,452.84x = 2,002,167,642,571,291.75
  5. Step 5: Solve for x
    x = 2,002,167,642,571,291.75/72,311,452.84
  6. Step 6: Final answer
    x = 27,688,112.52

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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.