Home / 80,447,274.78-111,008,195.28-47,405,378.94

Finding the Fourth Proportional to 80,447,274.78, 111,008,195.28 and 47,405,378.94

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Solution

The fourth proportional to 80,447,274.78, 111,008,195.28 and 47,405,378.94 is: 65,414,093.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,447,274.78 : 111,008,195.28 = 47,405,378.94 : x
  2. Step 2: Convert to fraction form
    80,447,274.78/111,008,195.28 = 47,405,378.94/x
  3. Step 3: Cross multiply
    80,447,274.78x = 111,008,195.28 × 47,405,378.94
  4. Step 4: Simplify right side
    80,447,274.78x = 5,262,385,562,693,919
  5. Step 5: Solve for x
    x = 5,262,385,562,693,919/80,447,274.78
  6. Step 6: Final answer
    x = 65,414,093.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.