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Finding the Fourth Proportional to 489,909,622.80, 734,864,434.20 and 336,854,614.80

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Solution

The fourth proportional to 489,909,622.80, 734,864,434.20 and 336,854,614.80 is: 505,281,922.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,909,622.80 : 734,864,434.20 = 336,854,614.80 : x
  2. Step 2: Convert to fraction form
    489,909,622.80/734,864,434.20 = 336,854,614.80/x
  3. Step 3: Cross multiply
    489,909,622.80x = 734,864,434.20 × 336,854,614.80
  4. Step 4: Simplify right side
    489,909,622.80x = 247,542,475,912,660,960
  5. Step 5: Solve for x
    x = 247,542,475,912,660,960/489,909,622.80
  6. Step 6: Final answer
    x = 505,281,922.20

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