Home / 80,381,553.03-120,539,874.47-31,171,496.67

Finding the Fourth Proportional to 80,381,553.03, 120,539,874.47 and 31,171,496.67

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Solution

The fourth proportional to 80,381,553.03, 120,539,874.47 and 31,171,496.67 is: 46,744,659.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,381,553.03 : 120,539,874.47 = 31,171,496.67 : x
  2. Step 2: Convert to fraction form
    80,381,553.03/120,539,874.47 = 31,171,496.67/x
  3. Step 3: Cross multiply
    80,381,553.03x = 120,539,874.47 × 31,171,496.67
  4. Step 4: Simplify right side
    80,381,553.03x = 3,757,408,295,487,966
  5. Step 5: Solve for x
    x = 3,757,408,295,487,966/80,381,553.03
  6. Step 6: Final answer
    x = 46,744,659.11

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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.