Home / 78,833,789.70-108,000,481.54-75,886,358.86

Finding the Fourth Proportional to 78,833,789.70, 108,000,481.54 and 75,886,358.86

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Solution

The fourth proportional to 78,833,789.70, 108,000,481.54 and 75,886,358.86 is: 103,962,568.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,833,789.70 : 108,000,481.54 = 75,886,358.86 : x
  2. Step 2: Convert to fraction form
    78,833,789.70/108,000,481.54 = 75,886,358.86/x
  3. Step 3: Cross multiply
    78,833,789.70x = 108,000,481.54 × 75,886,358.86
  4. Step 4: Simplify right side
    78,833,789.70x = 8,195,763,299,197,246
  5. Step 5: Solve for x
    x = 8,195,763,299,197,246/78,833,789.70
  6. Step 6: Final answer
    x = 103,962,568.97

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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.