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Finding the Fourth Proportional to 406,978,611.54, 610,471,607.76 and 115,845,619.92

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Solution

The fourth proportional to 406,978,611.54, 610,471,607.76 and 115,845,619.92 is: 173,769,480.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,978,611.54 : 610,471,607.76 = 115,845,619.92 : x
  2. Step 2: Convert to fraction form
    406,978,611.54/610,471,607.76 = 115,845,619.92/x
  3. Step 3: Cross multiply
    406,978,611.54x = 610,471,607.76 × 115,845,619.92
  4. Step 4: Simplify right side
    406,978,611.54x = 70,720,461,844,516,280
  5. Step 5: Solve for x
    x = 70,720,461,844,516,280/406,978,611.54
  6. Step 6: Final answer
    x = 173,769,480.36

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