Home / 321,107,043.42-443,139,901.04-179,980,872.21

Finding the Fourth Proportional to 321,107,043.42, 443,139,901.04 and 179,980,872.21

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Solution

The fourth proportional to 321,107,043.42, 443,139,901.04 and 179,980,872.21 is: 248,380,431.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,107,043.42 : 443,139,901.04 = 179,980,872.21 : x
  2. Step 2: Convert to fraction form
    321,107,043.42/443,139,901.04 = 179,980,872.21/x
  3. Step 3: Cross multiply
    321,107,043.42x = 443,139,901.04 × 179,980,872.21
  4. Step 4: Simplify right side
    321,107,043.42x = 79,756,705,900,682,240
  5. Step 5: Solve for x
    x = 79,756,705,900,682,240/321,107,043.42
  6. Step 6: Final answer
    x = 248,380,431.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.