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Finding the Fourth Proportional to 458,468,697.60, 687,703,046.40 and 416,142,374.40

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Solution

The fourth proportional to 458,468,697.60, 687,703,046.40 and 416,142,374.40 is: 624,213,561.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,468,697.60 : 687,703,046.40 = 416,142,374.40 : x
  2. Step 2: Convert to fraction form
    458,468,697.60/687,703,046.40 = 416,142,374.40/x
  3. Step 3: Cross multiply
    458,468,697.60x = 687,703,046.40 × 416,142,374.40
  4. Step 4: Simplify right side
    458,468,697.60x = 286,182,378,611,009,344
  5. Step 5: Solve for x
    x = 286,182,378,611,009,344/458,468,697.60
  6. Step 6: Final answer
    x = 624,213,561.60

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