Home / 212,419,861.20-318,629,791.80-146,662,894.80

Finding the Fourth Proportional to 212,419,861.20, 318,629,791.80 and 146,662,894.80

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Solution

The fourth proportional to 212,419,861.20, 318,629,791.80 and 146,662,894.80 is: 219,994,342.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,419,861.20 : 318,629,791.80 = 146,662,894.80 : x
  2. Step 2: Convert to fraction form
    212,419,861.20/318,629,791.80 = 146,662,894.80/x
  3. Step 3: Cross multiply
    212,419,861.20x = 318,629,791.80 × 146,662,894.80
  4. Step 4: Simplify right side
    212,419,861.20x = 46,731,167,634,909,312
  5. Step 5: Solve for x
    x = 46,731,167,634,909,312/212,419,861.20
  6. Step 6: Final answer
    x = 219,994,342.20

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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.