Home / 168,243,077.20-252,364,615.80-72,504,965.20

Finding the Fourth Proportional to 168,243,077.20, 252,364,615.80 and 72,504,965.20

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Solution

The fourth proportional to 168,243,077.20, 252,364,615.80 and 72,504,965.20 is: 108,757,447.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,243,077.20 : 252,364,615.80 = 72,504,965.20 : x
  2. Step 2: Convert to fraction form
    168,243,077.20/252,364,615.80 = 72,504,965.20/x
  3. Step 3: Cross multiply
    168,243,077.20x = 252,364,615.80 × 72,504,965.20
  4. Step 4: Simplify right side
    168,243,077.20x = 18,297,687,686,290,372
  5. Step 5: Solve for x
    x = 18,297,687,686,290,372/168,243,077.20
  6. Step 6: Final answer
    x = 108,757,447.80

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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.