Home / 388,375,083.52-582,792,465.78-142,904,099.72

Finding the Fourth Proportional to 388,375,083.52, 582,792,465.78 and 142,904,099.72

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Solution

The fourth proportional to 388,375,083.52, 582,792,465.78 and 142,904,099.72 is: 214,440,720.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,375,083.52 : 582,792,465.78 = 142,904,099.72 : x
  2. Step 2: Convert to fraction form
    388,375,083.52/582,792,465.78 = 142,904,099.72/x
  3. Step 3: Cross multiply
    388,375,083.52x = 582,792,465.78 × 142,904,099.72
  4. Step 4: Simplify right side
    388,375,083.52x = 83,283,432,647,346,784
  5. Step 5: Solve for x
    x = 83,283,432,647,346,784/388,375,083.52
  6. Step 6: Final answer
    x = 214,440,720.28

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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.