Home / 77,996,945.70-116,995,418.55-55,322,129.70

Finding the Fourth Proportional to 77,996,945.70, 116,995,418.55 and 55,322,129.70

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Solution

The fourth proportional to 77,996,945.70, 116,995,418.55 and 55,322,129.70 is: 82,983,194.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,996,945.70 : 116,995,418.55 = 55,322,129.70 : x
  2. Step 2: Convert to fraction form
    77,996,945.70/116,995,418.55 = 55,322,129.70/x
  3. Step 3: Cross multiply
    77,996,945.70x = 116,995,418.55 × 55,322,129.70
  4. Step 4: Simplify right side
    77,996,945.70x = 6,472,435,719,328,886
  5. Step 5: Solve for x
    x = 6,472,435,719,328,886/77,996,945.70
  6. Step 6: Final answer
    x = 82,983,194.55

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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.