Home / 80,115,728.04-120,188,536.56-36,399,551.76

Finding the Fourth Proportional to 80,115,728.04, 120,188,536.56 and 36,399,551.76

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Solution

The fourth proportional to 80,115,728.04, 120,188,536.56 and 36,399,551.76 is: 54,606,117.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,115,728.04 : 120,188,536.56 = 36,399,551.76 : x
  2. Step 2: Convert to fraction form
    80,115,728.04/120,188,536.56 = 36,399,551.76/x
  3. Step 3: Cross multiply
    80,115,728.04x = 120,188,536.56 × 36,399,551.76
  4. Step 4: Simplify right side
    80,115,728.04x = 4,374,808,857,474,372
  5. Step 5: Solve for x
    x = 4,374,808,857,474,372/80,115,728.04
  6. Step 6: Final answer
    x = 54,606,117.48

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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.