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Finding the Fourth Proportional to 580,832,362.40, 871,248,543.60 and 449,318,429.60

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Solution

The fourth proportional to 580,832,362.40, 871,248,543.60 and 449,318,429.60 is: 673,977,644.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,832,362.40 : 871,248,543.60 = 449,318,429.60 : x
  2. Step 2: Convert to fraction form
    580,832,362.40/871,248,543.60 = 449,318,429.60/x
  3. Step 3: Cross multiply
    580,832,362.40x = 871,248,543.60 × 449,318,429.60
  4. Step 4: Simplify right side
    580,832,362.40x = 391,468,027,401,639,168
  5. Step 5: Solve for x
    x = 391,468,027,401,639,168/580,832,362.40
  6. Step 6: Final answer
    x = 673,977,644.40

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