Home / 7,780,481.92-11,669,689.20-2,315,478.76

Finding the Fourth Proportional to 7,780,481.92, 11,669,689.20 and 2,315,478.76

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Solution

The fourth proportional to 7,780,481.92, 11,669,689.20 and 2,315,478.76 is: 3,472,910.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,780,481.92 : 11,669,689.20 = 2,315,478.76 : x
  2. Step 2: Convert to fraction form
    7,780,481.92/11,669,689.20 = 2,315,478.76/x
  3. Step 3: Cross multiply
    7,780,481.92x = 11,669,689.20 × 2,315,478.76
  4. Step 4: Simplify right side
    7,780,481.92x = 27,020,917,478,401.39
  5. Step 5: Solve for x
    x = 27,020,917,478,401.39/7,780,481.92
  6. Step 6: Final answer
    x = 3,472,910.52

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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.