Home / 262,654,442.20-393,981,663.30-80,878,000.60

Finding the Fourth Proportional to 262,654,442.20, 393,981,663.30 and 80,878,000.60

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Solution

The fourth proportional to 262,654,442.20, 393,981,663.30 and 80,878,000.60 is: 121,317,000.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,654,442.20 : 393,981,663.30 = 80,878,000.60 : x
  2. Step 2: Convert to fraction form
    262,654,442.20/393,981,663.30 = 80,878,000.60/x
  3. Step 3: Cross multiply
    262,654,442.20x = 393,981,663.30 × 80,878,000.60
  4. Step 4: Simplify right side
    262,654,442.20x = 31,864,449,200,766,396
  5. Step 5: Solve for x
    x = 31,864,449,200,766,396/262,654,442.20
  6. Step 6: Final answer
    x = 121,317,000.90

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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.