Home / 168,243,099.20-252,364,648.80-72,504,987.20

Finding the Fourth Proportional to 168,243,099.20, 252,364,648.80 and 72,504,987.20

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Solution

The fourth proportional to 168,243,099.20, 252,364,648.80 and 72,504,987.20 is: 108,757,480.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,243,099.20 : 252,364,648.80 = 72,504,987.20 : x
  2. Step 2: Convert to fraction form
    168,243,099.20/252,364,648.80 = 72,504,987.20/x
  3. Step 3: Cross multiply
    168,243,099.20x = 252,364,648.80 × 72,504,987.20
  4. Step 4: Simplify right side
    168,243,099.20x = 18,297,695,630,976,496
  5. Step 5: Solve for x
    x = 18,297,695,630,976,496/168,243,099.20
  6. Step 6: Final answer
    x = 108,757,480.80

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1.5x scale

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.