Home / 394,752,100.80-592,128,151.20-388,033,636.80

Finding the Fourth Proportional to 394,752,100.80, 592,128,151.20 and 388,033,636.80

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Solution

The fourth proportional to 394,752,100.80, 592,128,151.20 and 388,033,636.80 is: 582,050,455.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,752,100.80 : 592,128,151.20 = 388,033,636.80 : x
  2. Step 2: Convert to fraction form
    394,752,100.80/592,128,151.20 = 388,033,636.80/x
  3. Step 3: Cross multiply
    394,752,100.80x = 592,128,151.20 × 388,033,636.80
  4. Step 4: Simplify right side
    394,752,100.80x = 229,765,639,961,796,320
  5. Step 5: Solve for x
    x = 229,765,639,961,796,320/394,752,100.80
  6. Step 6: Final answer
    x = 582,050,455.20

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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.