Home / 78,833,843.30-108,000,561.17-75,886,418.54

Finding the Fourth Proportional to 78,833,843.30, 108,000,561.17 and 75,886,418.54

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Solution

The fourth proportional to 78,833,843.30, 108,000,561.17 and 75,886,418.54 is: 103,962,656.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,833,843.30 : 108,000,561.17 = 75,886,418.54 : x
  2. Step 2: Convert to fraction form
    78,833,843.30/108,000,561.17 = 75,886,418.54/x
  3. Step 3: Cross multiply
    78,833,843.30x = 108,000,561.17 × 75,886,418.54
  4. Step 4: Simplify right side
    78,833,843.30x = 8,195,775,787,501,493
  5. Step 5: Solve for x
    x = 8,195,775,787,501,493/78,833,843.30
  6. Step 6: Final answer
    x = 103,962,656.70

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.