Home / 115,809,516.72-159,777,180.59-74,018,045.43

Finding the Fourth Proportional to 115,809,516.72, 159,777,180.59 and 74,018,045.43

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Solution

The fourth proportional to 115,809,516.72, 159,777,180.59 and 74,018,045.43 is: 102,119,367.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,809,516.72 : 159,777,180.59 = 74,018,045.43 : x
  2. Step 2: Convert to fraction form
    115,809,516.72/159,777,180.59 = 74,018,045.43/x
  3. Step 3: Cross multiply
    115,809,516.72x = 159,777,180.59 × 74,018,045.43
  4. Step 4: Simplify right side
    115,809,516.72x = 11,826,394,611,217,846
  5. Step 5: Solve for x
    x = 11,826,394,611,217,846/115,809,516.72
  6. Step 6: Final answer
    x = 102,119,367.61

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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.