Home / 388,375,080.95-582,792,462-142,904,097.18

Finding the Fourth Proportional to 388,375,080.95, 582,792,462 and 142,904,097.18

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Solution

The fourth proportional to 388,375,080.95, 582,792,462 and 142,904,097.18 is: 214,440,716.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,375,080.95 : 582,792,462 = 142,904,097.18 : x
  2. Step 2: Convert to fraction form
    388,375,080.95/582,792,462 = 142,904,097.18/x
  3. Step 3: Cross multiply
    388,375,080.95x = 582,792,462 × 142,904,097.18
  4. Step 4: Simplify right side
    388,375,080.95x = 83,283,430,625,419,456
  5. Step 5: Solve for x
    x = 83,283,430,625,419,456/388,375,080.95
  6. Step 6: Final answer
    x = 214,440,716.49

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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.