Home / 431,682,786.70-647,524,180.05-402,772,396.30

Finding the Fourth Proportional to 431,682,786.70, 647,524,180.05 and 402,772,396.30

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Solution

The fourth proportional to 431,682,786.70, 647,524,180.05 and 402,772,396.30 is: 604,158,594.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,682,786.70 : 647,524,180.05 = 402,772,396.30 : x
  2. Step 2: Convert to fraction form
    431,682,786.70/647,524,180.05 = 402,772,396.30/x
  3. Step 3: Cross multiply
    431,682,786.70x = 647,524,180.05 × 402,772,396.30
  4. Step 4: Simplify right side
    431,682,786.70x = 260,804,865,660,931,136
  5. Step 5: Solve for x
    x = 260,804,865,660,931,136/431,682,786.70
  6. Step 6: Final answer
    x = 604,158,594.45

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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.