Home / 299,121,002.12-448,704,198.12-80,768,166.50

Finding the Fourth Proportional to 299,121,002.12, 448,704,198.12 and 80,768,166.50

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Solution

The fourth proportional to 299,121,002.12, 448,704,198.12 and 80,768,166.50 is: 121,158,377.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,121,002.12 : 448,704,198.12 = 80,768,166.50 : x
  2. Step 2: Convert to fraction form
    299,121,002.12/448,704,198.12 = 80,768,166.50/x
  3. Step 3: Cross multiply
    299,121,002.12x = 448,704,198.12 × 80,768,166.50
  4. Step 4: Simplify right side
    299,121,002.12x = 36,241,015,383,005,144
  5. Step 5: Solve for x
    x = 36,241,015,383,005,144/299,121,002.12
  6. Step 6: Final answer
    x = 121,158,377.80

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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.