Home / 168,242,768.20-252,364,152.30-72,504,656.20

Finding the Fourth Proportional to 168,242,768.20, 252,364,152.30 and 72,504,656.20

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Solution

The fourth proportional to 168,242,768.20, 252,364,152.30 and 72,504,656.20 is: 108,756,984.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,242,768.20 : 252,364,152.30 = 72,504,656.20 : x
  2. Step 2: Convert to fraction form
    168,242,768.20/252,364,152.30 = 72,504,656.20/x
  3. Step 3: Cross multiply
    168,242,768.20x = 252,364,152.30 × 72,504,656.20
  4. Step 4: Simplify right side
    168,242,768.20x = 18,297,576,099,715,940
  5. Step 5: Solve for x
    x = 18,297,576,099,715,940/168,242,768.20
  6. Step 6: Final answer
    x = 108,756,984.30

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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.