Home / 80,265,796.88-120,401,193.06-38,191,270.28

Finding the Fourth Proportional to 80,265,796.88, 120,401,193.06 and 38,191,270.28

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Solution

The fourth proportional to 80,265,796.88, 120,401,193.06 and 38,191,270.28 is: 57,288,093.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,265,796.88 : 120,401,193.06 = 38,191,270.28 : x
  2. Step 2: Convert to fraction form
    80,265,796.88/120,401,193.06 = 38,191,270.28/x
  3. Step 3: Cross multiply
    80,265,796.88x = 120,401,193.06 × 38,191,270.28
  4. Step 4: Simplify right side
    80,265,796.88x = 4,598,274,506,188,920
  5. Step 5: Solve for x
    x = 4,598,274,506,188,920/80,265,796.88
  6. Step 6: Final answer
    x = 57,288,093.87

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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.