Home / 193,620,885.20-290,431,327.80-192,487,144.40

Finding the Fourth Proportional to 193,620,885.20, 290,431,327.80 and 192,487,144.40

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Solution

The fourth proportional to 193,620,885.20, 290,431,327.80 and 192,487,144.40 is: 288,730,716.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,620,885.20 : 290,431,327.80 = 192,487,144.40 : x
  2. Step 2: Convert to fraction form
    193,620,885.20/290,431,327.80 = 192,487,144.40/x
  3. Step 3: Cross multiply
    193,620,885.20x = 290,431,327.80 × 192,487,144.40
  4. Step 4: Simplify right side
    193,620,885.20x = 55,904,296,932,522,336
  5. Step 5: Solve for x
    x = 55,904,296,932,522,336/193,620,885.20
  6. Step 6: Final answer
    x = 288,730,716.60

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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.