Home / 31,515,473.70-47,278,098.27-13,319,745.48

Finding the Fourth Proportional to 31,515,473.70, 47,278,098.27 and 13,319,745.48

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Solution

The fourth proportional to 31,515,473.70, 47,278,098.27 and 13,319,745.48 is: 19,981,683.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,515,473.70 : 47,278,098.27 = 13,319,745.48 : x
  2. Step 2: Convert to fraction form
    31,515,473.70/47,278,098.27 = 13,319,745.48/x
  3. Step 3: Cross multiply
    31,515,473.70x = 47,278,098.27 × 13,319,745.48
  4. Step 4: Simplify right side
    31,515,473.70x = 629,732,235,734,828.38
  5. Step 5: Solve for x
    x = 629,732,235,734,828.38/31,515,473.70
  6. Step 6: Final answer
    x = 19,981,683.97

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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.