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Finding the Fourth Proportional to 414,661,813.23, 621,995,044.98 and 138,312,268.72

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Solution

The fourth proportional to 414,661,813.23, 621,995,044.98 and 138,312,268.72 is: 207,469,178.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,661,813.23 : 621,995,044.98 = 138,312,268.72 : x
  2. Step 2: Convert to fraction form
    414,661,813.23/621,995,044.98 = 138,312,268.72/x
  3. Step 3: Cross multiply
    414,661,813.23x = 621,995,044.98 × 138,312,268.72
  4. Step 4: Simplify right side
    414,661,813.23x = 86,029,545,801,619,664
  5. Step 5: Solve for x
    x = 86,029,545,801,619,664/414,661,813.23
  6. Step 6: Final answer
    x = 207,469,178.64

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Why These Related Problems?

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