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Finding the Fourth Proportional to 448,404,801.40, 672,607,202.10 and 419,706,987.40

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Solution

The fourth proportional to 448,404,801.40, 672,607,202.10 and 419,706,987.40 is: 629,560,481.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,404,801.40 : 672,607,202.10 = 419,706,987.40 : x
  2. Step 2: Convert to fraction form
    448,404,801.40/672,607,202.10 = 419,706,987.40/x
  3. Step 3: Cross multiply
    448,404,801.40x = 672,607,202.10 × 419,706,987.40
  4. Step 4: Simplify right side
    448,404,801.40x = 282,297,942,496,933,952
  5. Step 5: Solve for x
    x = 282,297,942,496,933,952/448,404,801.40
  6. Step 6: Final answer
    x = 629,560,481.10

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