Home / 80,744,505.70-120,972,416.55-49,137,981.70

Finding the Fourth Proportional to 80,744,505.70, 120,972,416.55 and 49,137,981.70

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Solution

The fourth proportional to 80,744,505.70, 120,972,416.55 and 49,137,981.70 is: 73,619,131.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,744,505.70 : 120,972,416.55 = 49,137,981.70 : x
  2. Step 2: Convert to fraction form
    80,744,505.70/120,972,416.55 = 49,137,981.70/x
  3. Step 3: Cross multiply
    80,744,505.70x = 120,972,416.55 × 49,137,981.70
  4. Step 4: Simplify right side
    80,744,505.70x = 5,944,340,390,638,677
  5. Step 5: Solve for x
    x = 5,944,340,390,638,677/80,744,505.70
  6. Step 6: Final answer
    x = 73,619,131.59

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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.