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Finding the Fourth Proportional to 239,239,679.60, 358,859,519.60 and 57,486,857.60

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Solution

The fourth proportional to 239,239,679.60, 358,859,519.60 and 57,486,857.60 is: 86,230,286.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,239,679.60 : 358,859,519.60 = 57,486,857.60 : x
  2. Step 2: Convert to fraction form
    239,239,679.60/358,859,519.60 = 57,486,857.60/x
  3. Step 3: Cross multiply
    239,239,679.60x = 358,859,519.60 × 57,486,857.60
  4. Step 4: Simplify right side
    239,239,679.60x = 20,629,706,099,567,880
  5. Step 5: Solve for x
    x = 20,629,706,099,567,880/239,239,679.60
  6. Step 6: Final answer
    x = 86,230,286.44

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.