Home / 388,375,070.86-582,792,446.78-142,904,087.04

Finding the Fourth Proportional to 388,375,070.86, 582,792,446.78 and 142,904,087.04

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Solution

The fourth proportional to 388,375,070.86, 582,792,446.78 and 142,904,087.04 is: 214,440,701.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,375,070.86 : 582,792,446.78 = 142,904,087.04 : x
  2. Step 2: Convert to fraction form
    388,375,070.86/582,792,446.78 = 142,904,087.04/x
  3. Step 3: Cross multiply
    388,375,070.86x = 582,792,446.78 × 142,904,087.04
  4. Step 4: Simplify right side
    388,375,070.86x = 83,283,422,539,635,216
  5. Step 5: Solve for x
    x = 83,283,422,539,635,216/388,375,070.86
  6. Step 6: Final answer
    x = 214,440,701.24

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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.