Home / 431,682,761.70-647,524,142.55-402,772,371.30

Finding the Fourth Proportional to 431,682,761.70, 647,524,142.55 and 402,772,371.30

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Solution

The fourth proportional to 431,682,761.70, 647,524,142.55 and 402,772,371.30 is: 604,158,556.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,682,761.70 : 647,524,142.55 = 402,772,371.30 : x
  2. Step 2: Convert to fraction form
    431,682,761.70/647,524,142.55 = 402,772,371.30/x
  3. Step 3: Cross multiply
    431,682,761.70x = 647,524,142.55 × 402,772,371.30
  4. Step 4: Simplify right side
    431,682,761.70x = 260,804,834,368,862,720
  5. Step 5: Solve for x
    x = 260,804,834,368,862,720/431,682,761.70
  6. Step 6: Final answer
    x = 604,158,556.95

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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.