Home / 7,940,150.76-11,911,407.12-3,680,749.56

Finding the Fourth Proportional to 7,940,150.76, 11,911,407.12 and 3,680,749.56

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Solution

The fourth proportional to 7,940,150.76, 11,911,407.12 and 3,680,749.56 is: 5,521,671.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,940,150.76 : 11,911,407.12 = 3,680,749.56 : x
  2. Step 2: Convert to fraction form
    7,940,150.76/11,911,407.12 = 3,680,749.56/x
  3. Step 3: Cross multiply
    7,940,150.76x = 11,911,407.12 × 3,680,749.56
  4. Step 4: Simplify right side
    7,940,150.76x = 43,842,906,515,920.87
  5. Step 5: Solve for x
    x = 43,842,906,515,920.87/7,940,150.76
  6. Step 6: Final answer
    x = 5,521,671.80

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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.