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Finding the Fourth Proportional to 660,502,571.40, 990,753,857.10 and 200,440,002.60

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Solution

The fourth proportional to 660,502,571.40, 990,753,857.10 and 200,440,002.60 is: 300,660,003.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,502,571.40 : 990,753,857.10 = 200,440,002.60 : x
  2. Step 2: Convert to fraction form
    660,502,571.40/990,753,857.10 = 200,440,002.60/x
  3. Step 3: Cross multiply
    660,502,571.40x = 990,753,857.10 × 200,440,002.60
  4. Step 4: Simplify right side
    660,502,571.40x = 198,586,705,693,084,032
  5. Step 5: Solve for x
    x = 198,586,705,693,084,032/660,502,571.40
  6. Step 6: Final answer
    x = 300,660,003.90

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