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Finding the Fourth Proportional to 978,950,458.35, 1,468,466,209.89 and 288,857,712.31

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Solution

The fourth proportional to 978,950,458.35, 1,468,466,209.89 and 288,857,712.31 is: 433,298,525.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    978,950,458.35 : 1,468,466,209.89 = 288,857,712.31 : x
  2. Step 2: Convert to fraction form
    978,950,458.35/1,468,466,209.89 = 288,857,712.31/x
  3. Step 3: Cross multiply
    978,950,458.35x = 1,468,466,209.89 × 288,857,712.31
  4. Step 4: Simplify right side
    978,950,458.35x = 424,177,789,989,690,560
  5. Step 5: Solve for x
    x = 424,177,789,989,690,560/978,950,458.35
  6. Step 6: Final answer
    x = 433,298,525.35

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