Home / 72,618,845.20-108,802,296.60-47,046,691.60

Finding the Fourth Proportional to 72,618,845.20, 108,802,296.60 and 47,046,691.60

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Solution

The fourth proportional to 72,618,845.20, 108,802,296.60 and 47,046,691.60 is: 70,488,425.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,618,845.20 : 108,802,296.60 = 47,046,691.60 : x
  2. Step 2: Convert to fraction form
    72,618,845.20/108,802,296.60 = 47,046,691.60/x
  3. Step 3: Cross multiply
    72,618,845.20x = 108,802,296.60 × 47,046,691.60
  4. Step 4: Simplify right side
    72,618,845.20x = 5,118,788,093,511,928
  5. Step 5: Solve for x
    x = 5,118,788,093,511,928/72,618,845.20
  6. Step 6: Final answer
    x = 70,488,425.96

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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.