Home / 431,481,404.62-647,682,688.66-185,959,205.54

Finding the Fourth Proportional to 431,481,404.62, 647,682,688.66 and 185,959,205.54

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Solution

The fourth proportional to 431,481,404.62, 647,682,688.66 and 185,959,205.54 is: 279,137,309.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,481,404.62 : 647,682,688.66 = 185,959,205.54 : x
  2. Step 2: Convert to fraction form
    431,481,404.62/647,682,688.66 = 185,959,205.54/x
  3. Step 3: Cross multiply
    431,481,404.62x = 647,682,688.66 × 185,959,205.54
  4. Step 4: Simplify right side
    431,481,404.62x = 120,442,558,225,224,752
  5. Step 5: Solve for x
    x = 120,442,558,225,224,752/431,481,404.62
  6. Step 6: Final answer
    x = 279,137,309.13

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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.