Home / 80,405,874.72-120,560,873.04-54,529,990.56

Finding the Fourth Proportional to 80,405,874.72, 120,560,873.04 and 54,529,990.56

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Solution

The fourth proportional to 80,405,874.72, 120,560,873.04 and 54,529,990.56 is: 81,762,474.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,405,874.72 : 120,560,873.04 = 54,529,990.56 : x
  2. Step 2: Convert to fraction form
    80,405,874.72/120,560,873.04 = 54,529,990.56/x
  3. Step 3: Cross multiply
    80,405,874.72x = 120,560,873.04 × 54,529,990.56
  4. Step 4: Simplify right side
    80,405,874.72x = 6,574,183,268,776,559
  5. Step 5: Solve for x
    x = 6,574,183,268,776,559/80,405,874.72
  6. Step 6: Final answer
    x = 81,762,474.34

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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.