Home / 443,378,090.70-665,067,136.05-432,040,682.70

Finding the Fourth Proportional to 443,378,090.70, 665,067,136.05 and 432,040,682.70

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Solution

The fourth proportional to 443,378,090.70, 665,067,136.05 and 432,040,682.70 is: 648,061,024.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,378,090.70 : 665,067,136.05 = 432,040,682.70 : x
  2. Step 2: Convert to fraction form
    443,378,090.70/665,067,136.05 = 432,040,682.70/x
  3. Step 3: Cross multiply
    443,378,090.70x = 665,067,136.05 × 432,040,682.70
  4. Step 4: Simplify right side
    443,378,090.70x = 287,336,059,500,375,744
  5. Step 5: Solve for x
    x = 287,336,059,500,375,744/443,378,090.70
  6. Step 6: Final answer
    x = 648,061,024.05

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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.