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Finding the Fourth Proportional to 209,968,313.80, 314,952,470.70 and 133,346,331.40

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Solution

The fourth proportional to 209,968,313.80, 314,952,470.70 and 133,346,331.40 is: 200,019,497.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,968,313.80 : 314,952,470.70 = 133,346,331.40 : x
  2. Step 2: Convert to fraction form
    209,968,313.80/314,952,470.70 = 133,346,331.40/x
  3. Step 3: Cross multiply
    209,968,313.80x = 314,952,470.70 × 133,346,331.40
  4. Step 4: Simplify right side
    209,968,313.80x = 41,997,756,533,210,992
  5. Step 5: Solve for x
    x = 41,997,756,533,210,992/209,968,313.80
  6. Step 6: Final answer
    x = 200,019,497.10

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