Home / 388,375,064.24-582,792,436.91-142,904,080.45

Finding the Fourth Proportional to 388,375,064.24, 582,792,436.91 and 142,904,080.45

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Solution

The fourth proportional to 388,375,064.24, 582,792,436.91 and 142,904,080.45 is: 214,440,691.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,375,064.24 : 582,792,436.91 = 142,904,080.45 : x
  2. Step 2: Convert to fraction form
    388,375,064.24/582,792,436.91 = 142,904,080.45/x
  3. Step 3: Cross multiply
    388,375,064.24x = 582,792,436.91 × 142,904,080.45
  4. Step 4: Simplify right side
    388,375,064.24x = 83,283,417,289,838,176
  5. Step 5: Solve for x
    x = 83,283,417,289,838,176/388,375,064.24
  6. Step 6: Final answer
    x = 214,440,691.38

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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.