Home / 262,691,691.20-394,037,536.80-165,945,809.60

Finding the Fourth Proportional to 262,691,691.20, 394,037,536.80 and 165,945,809.60

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Solution

The fourth proportional to 262,691,691.20, 394,037,536.80 and 165,945,809.60 is: 248,918,714.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,691,691.20 : 394,037,536.80 = 165,945,809.60 : x
  2. Step 2: Convert to fraction form
    262,691,691.20/394,037,536.80 = 165,945,809.60/x
  3. Step 3: Cross multiply
    262,691,691.20x = 394,037,536.80 × 165,945,809.60
  4. Step 4: Simplify right side
    262,691,691.20x = 65,388,878,057,065,792
  5. Step 5: Solve for x
    x = 65,388,878,057,065,792/262,691,691.20
  6. Step 6: Final answer
    x = 248,918,714.40

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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.