Home / 260,969,099.76-391,444,783.92-66,882,420.72

Finding the Fourth Proportional to 260,969,099.76, 391,444,783.92 and 66,882,420.72

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Solution

The fourth proportional to 260,969,099.76, 391,444,783.92 and 66,882,420.72 is: 100,321,358.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,969,099.76 : 391,444,783.92 = 66,882,420.72 : x
  2. Step 2: Convert to fraction form
    260,969,099.76/391,444,783.92 = 66,882,420.72/x
  3. Step 3: Cross multiply
    260,969,099.76x = 391,444,783.92 × 66,882,420.72
  4. Step 4: Simplify right side
    260,969,099.76x = 26,180,774,726,786,932
  5. Step 5: Solve for x
    x = 26,180,774,726,786,932/260,969,099.76
  6. Step 6: Final answer
    x = 100,321,358.93

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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.