Home / 80,279,361.84-120,408,770.67-25,687,380.36

Finding the Fourth Proportional to 80,279,361.84, 120,408,770.67 and 25,687,380.36

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Solution

The fourth proportional to 80,279,361.84, 120,408,770.67 and 25,687,380.36 is: 38,527,783.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,279,361.84 : 120,408,770.67 = 25,687,380.36 : x
  2. Step 2: Convert to fraction form
    80,279,361.84/120,408,770.67 = 25,687,380.36/x
  3. Step 3: Cross multiply
    80,279,361.84x = 120,408,770.67 × 25,687,380.36
  4. Step 4: Simplify right side
    80,279,361.84x = 3,092,985,890,880,302
  5. Step 5: Solve for x
    x = 3,092,985,890,880,302/80,279,361.84
  6. Step 6: Final answer
    x = 38,527,783.73

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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.