Home / 20,269,654.80-30,404,474.54-8,139,114.64

Finding the Fourth Proportional to 20,269,654.80, 30,404,474.54 and 8,139,114.64

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Solution

The fourth proportional to 20,269,654.80, 30,404,474.54 and 8,139,114.64 is: 12,208,668.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,269,654.80 : 30,404,474.54 = 8,139,114.64 : x
  2. Step 2: Convert to fraction form
    20,269,654.80/30,404,474.54 = 8,139,114.64/x
  3. Step 3: Cross multiply
    20,269,654.80x = 30,404,474.54 × 8,139,114.64
  4. Step 4: Simplify right side
    20,269,654.80x = 247,465,503,850,021.25
  5. Step 5: Solve for x
    x = 247,465,503,850,021.25/20,269,654.80
  6. Step 6: Final answer
    x = 12,208,668.88

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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.