Home / 80,405,875.22-120,560,873.79-54,529,991.06

Finding the Fourth Proportional to 80,405,875.22, 120,560,873.79 and 54,529,991.06

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Solution

The fourth proportional to 80,405,875.22, 120,560,873.79 and 54,529,991.06 is: 81,762,475.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,405,875.22 : 120,560,873.79 = 54,529,991.06 : x
  2. Step 2: Convert to fraction form
    80,405,875.22/120,560,873.79 = 54,529,991.06/x
  3. Step 3: Cross multiply
    80,405,875.22x = 120,560,873.79 × 54,529,991.06
  4. Step 4: Simplify right side
    80,405,875.22x = 6,574,183,369,954,489
  5. Step 5: Solve for x
    x = 6,574,183,369,954,489/80,405,875.22
  6. Step 6: Final answer
    x = 81,762,475.09

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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.