Home / 20,829,013.50-31,248,508.54-8,691,725.24

Finding the Fourth Proportional to 20,829,013.50, 31,248,508.54 and 8,691,725.24

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Solution

The fourth proportional to 20,829,013.50, 31,248,508.54 and 8,691,725.24 is: 13,039,669.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,829,013.50 : 31,248,508.54 = 8,691,725.24 : x
  2. Step 2: Convert to fraction form
    20,829,013.50/31,248,508.54 = 8,691,725.24/x
  3. Step 3: Cross multiply
    20,829,013.50x = 31,248,508.54 × 8,691,725.24
  4. Step 4: Simplify right side
    20,829,013.50x = 271,603,450,389,473.56
  5. Step 5: Solve for x
    x = 271,603,450,389,473.56/20,829,013.50
  6. Step 6: Final answer
    x = 13,039,669.42

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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.