Home / 720,591,812,631.93-994,445,371,839.83-395,442,740,287.88

Finding the Fourth Proportional to 720,591,812,631.93, 994,445,371,839.83 and 395,442,740,287.88

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Solution

The fourth proportional to 720,591,812,631.93, 994,445,371,839.83 and 395,442,740,287.88 is: 545,726,715,199.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,591,812,631.93 : 994,445,371,839.83 = 395,442,740,287.88 : x
  2. Step 2: Convert to fraction form
    720,591,812,631.93/994,445,371,839.83 = 395,442,740,287.88/x
  3. Step 3: Cross multiply
    720,591,812,631.93x = 994,445,371,839.83 × 395,442,740,287.88
  4. Step 4: Simplify right side
    720,591,812,631.93x = 393,246,202,906,942,166,269,952
  5. Step 5: Solve for x
    x = 393,246,202,906,942,166,269,952/720,591,812,631.93
  6. Step 6: Final answer
    x = 545,726,715,199.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.