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Finding the Fourth Proportional to 342,197,817.60, 513,233,740.80 and 212,573,452.80

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Solution

The fourth proportional to 342,197,817.60, 513,233,740.80 and 212,573,452.80 is: 318,821,052.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,197,817.60 : 513,233,740.80 = 212,573,452.80 : x
  2. Step 2: Convert to fraction form
    342,197,817.60/513,233,740.80 = 212,573,452.80/x
  3. Step 3: Cross multiply
    342,197,817.60x = 513,233,740.80 × 212,573,452.80
  4. Step 4: Simplify right side
    342,197,817.60x = 109,099,868,375,316,240
  5. Step 5: Solve for x
    x = 109,099,868,375,316,240/342,197,817.60
  6. Step 6: Final answer
    x = 318,821,052.51

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