Home / 212,856,864.40-319,285,296.60-131,815,046.80

Finding the Fourth Proportional to 212,856,864.40, 319,285,296.60 and 131,815,046.80

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Solution

The fourth proportional to 212,856,864.40, 319,285,296.60 and 131,815,046.80 is: 197,722,570.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,856,864.40 : 319,285,296.60 = 131,815,046.80 : x
  2. Step 2: Convert to fraction form
    212,856,864.40/319,285,296.60 = 131,815,046.80/x
  3. Step 3: Cross multiply
    212,856,864.40x = 319,285,296.60 × 131,815,046.80
  4. Step 4: Simplify right side
    212,856,864.40x = 42,086,606,313,880,880
  5. Step 5: Solve for x
    x = 42,086,606,313,880,880/212,856,864.40
  6. Step 6: Final answer
    x = 197,722,570.20

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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.