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Finding the Fourth Proportional to 643,883,978.20, 966,144,831.90 and 367,747,234.60

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Solution

The fourth proportional to 643,883,978.20, 966,144,831.90 and 367,747,234.60 is: 551,802,967.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,883,978.20 : 966,144,831.90 = 367,747,234.60 : x
  2. Step 2: Convert to fraction form
    643,883,978.20/966,144,831.90 = 367,747,234.60/x
  3. Step 3: Cross multiply
    643,883,978.20x = 966,144,831.90 × 367,747,234.60
  4. Step 4: Simplify right side
    643,883,978.20x = 355,297,090,154,306,880
  5. Step 5: Solve for x
    x = 355,297,090,154,306,880/643,883,978.20
  6. Step 6: Final answer
    x = 551,802,967.90

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Why These Related Problems?

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