Home / 388,220,020.40-582,619,247.82-284,856,324.80

Finding the Fourth Proportional to 388,220,020.40, 582,619,247.82 and 284,856,324.80

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Solution

The fourth proportional to 388,220,020.40, 582,619,247.82 and 284,856,324.80 is: 427,496,700.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,220,020.40 : 582,619,247.82 = 284,856,324.80 : x
  2. Step 2: Convert to fraction form
    388,220,020.40/582,619,247.82 = 284,856,324.80/x
  3. Step 3: Cross multiply
    388,220,020.40x = 582,619,247.82 × 284,856,324.80
  4. Step 4: Simplify right side
    388,220,020.40x = 165,962,777,688,832,544
  5. Step 5: Solve for x
    x = 165,962,777,688,832,544/388,220,020.40
  6. Step 6: Final answer
    x = 427,496,700.24

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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.