Home / 28,237,761.76-38,972,020.32-15,848,592.66

Finding the Fourth Proportional to 28,237,761.76, 38,972,020.32 and 15,848,592.66

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Solution

The fourth proportional to 28,237,761.76, 38,972,020.32 and 15,848,592.66 is: 21,873,251.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,237,761.76 : 38,972,020.32 = 15,848,592.66 : x
  2. Step 2: Convert to fraction form
    28,237,761.76/38,972,020.32 = 15,848,592.66/x
  3. Step 3: Cross multiply
    28,237,761.76x = 38,972,020.32 × 15,848,592.66
  4. Step 4: Simplify right side
    28,237,761.76x = 617,651,675,188,922.88
  5. Step 5: Solve for x
    x = 617,651,675,188,922.88/28,237,761.76
  6. Step 6: Final answer
    x = 21,873,251.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.