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Finding the Fourth Proportional to 570,858,600.40, 856,287,900.60 and 398,671,716.40

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Solution

The fourth proportional to 570,858,600.40, 856,287,900.60 and 398,671,716.40 is: 598,007,574.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,858,600.40 : 856,287,900.60 = 398,671,716.40 : x
  2. Step 2: Convert to fraction form
    570,858,600.40/856,287,900.60 = 398,671,716.40/x
  3. Step 3: Cross multiply
    570,858,600.40x = 856,287,900.60 × 398,671,716.40
  4. Step 4: Simplify right side
    570,858,600.40x = 341,377,767,064,754,560
  5. Step 5: Solve for x
    x = 341,377,767,064,754,560/570,858,600.40
  6. Step 6: Final answer
    x = 598,007,574.60

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