Home / 279,855,714.38-419,388,977.24-132,145,673.63

Finding the Fourth Proportional to 279,855,714.38, 419,388,977.24 and 132,145,673.63

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Solution

The fourth proportional to 279,855,714.38, 419,388,977.24 and 132,145,673.63 is: 198,032,186.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,855,714.38 : 419,388,977.24 = 132,145,673.63 : x
  2. Step 2: Convert to fraction form
    279,855,714.38/419,388,977.24 = 132,145,673.63/x
  3. Step 3: Cross multiply
    279,855,714.38x = 419,388,977.24 × 132,145,673.63
  4. Step 4: Simplify right side
    279,855,714.38x = 55,420,438,909,715,808
  5. Step 5: Solve for x
    x = 55,420,438,909,715,808/279,855,714.38
  6. Step 6: Final answer
    x = 198,032,186.09

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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.