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Finding the Fourth Proportional to 5,318,783,463.90, 7,978,175,195.85 and 5,318,783,463.90

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Solution

The fourth proportional to 5,318,783,463.90, 7,978,175,195.85 and 5,318,783,463.90 is: 7,978,175,195.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,318,783,463.90 : 7,978,175,195.85 = 5,318,783,463.90 : x
  2. Step 2: Convert to fraction form
    5,318,783,463.90/7,978,175,195.85 = 5,318,783,463.90/x
  3. Step 3: Cross multiply
    5,318,783,463.90x = 7,978,175,195.85 × 5,318,783,463.90
  4. Step 4: Simplify right side
    5,318,783,463.90x = 42,434,186,303,784,124,416
  5. Step 5: Solve for x
    x = 42,434,186,303,784,124,416/5,318,783,463.90
  6. Step 6: Final answer
    x = 7,978,175,195.85

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