Home / 72,511,201.31-108,727,046.62-28,747,625.45

Finding the Fourth Proportional to 72,511,201.31, 108,727,046.62 and 28,747,625.45

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Solution

The fourth proportional to 72,511,201.31, 108,727,046.62 and 28,747,625.45 is: 43,105,676.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,511,201.31 : 108,727,046.62 = 28,747,625.45 : x
  2. Step 2: Convert to fraction form
    72,511,201.31/108,727,046.62 = 28,747,625.45/x
  3. Step 3: Cross multiply
    72,511,201.31x = 108,727,046.62 × 28,747,625.45
  4. Step 4: Simplify right side
    72,511,201.31x = 3,125,644,411,900,944.50
  5. Step 5: Solve for x
    x = 3,125,644,411,900,944.50/72,511,201.31
  6. Step 6: Final answer
    x = 43,105,676.86

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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.