Home / 387,260,668,622.20-580,722,297,356.88-205,703,770,121.62

Finding the Fourth Proportional to 387,260,668,622.20, 580,722,297,356.88 and 205,703,770,121.62

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Solution

The fourth proportional to 387,260,668,622.20, 580,722,297,356.88 and 205,703,770,121.62 is: 308,466,042,743.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,260,668,622.20 : 580,722,297,356.88 = 205,703,770,121.62 : x
  2. Step 2: Convert to fraction form
    387,260,668,622.20/580,722,297,356.88 = 205,703,770,121.62/x
  3. Step 3: Cross multiply
    387,260,668,622.20x = 580,722,297,356.88 × 205,703,770,121.62
  4. Step 4: Simplify right side
    387,260,668,622.20x = 119,456,765,959,998,697,111,552
  5. Step 5: Solve for x
    x = 119,456,765,959,998,697,111,552/387,260,668,622.20
  6. Step 6: Final answer
    x = 308,466,042,743.26

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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.