Home / 388,375,085.77-582,792,469.16-142,904,101.93

Finding the Fourth Proportional to 388,375,085.77, 582,792,469.16 and 142,904,101.93

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Solution

The fourth proportional to 388,375,085.77, 582,792,469.16 and 142,904,101.93 is: 214,440,723.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,375,085.77 : 582,792,469.16 = 142,904,101.93 : x
  2. Step 2: Convert to fraction form
    388,375,085.77/582,792,469.16 = 142,904,101.93/x
  3. Step 3: Cross multiply
    388,375,085.77x = 582,792,469.16 × 142,904,101.93
  4. Step 4: Simplify right side
    388,375,085.77x = 83,283,434,414,705,520
  5. Step 5: Solve for x
    x = 83,283,434,414,705,520/388,375,085.77
  6. Step 6: Final answer
    x = 214,440,723.59

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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.