Home / 388,375,063.24-582,792,435.41-142,904,079.45

Finding the Fourth Proportional to 388,375,063.24, 582,792,435.41 and 142,904,079.45

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Solution

The fourth proportional to 388,375,063.24, 582,792,435.41 and 142,904,079.45 is: 214,440,689.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,375,063.24 : 582,792,435.41 = 142,904,079.45 : x
  2. Step 2: Convert to fraction form
    388,375,063.24/582,792,435.41 = 142,904,079.45/x
  3. Step 3: Cross multiply
    388,375,063.24x = 582,792,435.41 × 142,904,079.45
  4. Step 4: Simplify right side
    388,375,063.24x = 83,283,416,492,681,744
  5. Step 5: Solve for x
    x = 83,283,416,492,681,744/388,375,063.24
  6. Step 6: Final answer
    x = 214,440,689.88

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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.