Home / 168,876,311.44-253,478,272.82-81,499,319.32

Finding the Fourth Proportional to 168,876,311.44, 253,478,272.82 and 81,499,319.32

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Solution

The fourth proportional to 168,876,311.44, 253,478,272.82 and 81,499,319.32 is: 122,328,031.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,876,311.44 : 253,478,272.82 = 81,499,319.32 : x
  2. Step 2: Convert to fraction form
    168,876,311.44/253,478,272.82 = 81,499,319.32/x
  3. Step 3: Cross multiply
    168,876,311.44x = 253,478,272.82 × 81,499,319.32
  4. Step 4: Simplify right side
    168,876,311.44x = 20,658,306,697,239,256
  5. Step 5: Solve for x
    x = 20,658,306,697,239,256/168,876,311.44
  6. Step 6: Final answer
    x = 122,328,031.21

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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.