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Finding the Fourth Proportional to 653,221,383.80, 978,698,334.90 and 423,072,001.40

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Solution

The fourth proportional to 653,221,383.80, 978,698,334.90 and 423,072,001.40 is: 633,873,712.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,221,383.80 : 978,698,334.90 = 423,072,001.40 : x
  2. Step 2: Convert to fraction form
    653,221,383.80/978,698,334.90 = 423,072,001.40/x
  3. Step 3: Cross multiply
    653,221,383.80x = 978,698,334.90 × 423,072,001.40
  4. Step 4: Simplify right side
    653,221,383.80x = 414,059,863,312,990,464
  5. Step 5: Solve for x
    x = 414,059,863,312,990,464/653,221,383.80
  6. Step 6: Final answer
    x = 633,873,712.01

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