Home / 80,205,213.44-120,310,152.96-19,620,920

Finding the Fourth Proportional to 80,205,213.44, 120,310,152.96 and 19,620,920

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Solution

The fourth proportional to 80,205,213.44, 120,310,152.96 and 19,620,920 is: 29,431,950.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,205,213.44 : 120,310,152.96 = 19,620,920 : x
  2. Step 2: Convert to fraction form
    80,205,213.44/120,310,152.96 = 19,620,920/x
  3. Step 3: Cross multiply
    80,205,213.44x = 120,310,152.96 × 19,620,920
  4. Step 4: Simplify right side
    80,205,213.44x = 2,360,595,886,415,923
  5. Step 5: Solve for x
    x = 2,360,595,886,415,923/80,205,213.44
  6. Step 6: Final answer
    x = 29,431,950.68

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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.