Home / 10,378,867.30-15,569,786.74-3,191,004.78

Finding the Fourth Proportional to 10,378,867.30, 15,569,786.74 and 3,191,004.78

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Solution

The fourth proportional to 10,378,867.30, 15,569,786.74 and 3,191,004.78 is: 4,786,963.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,378,867.30 : 15,569,786.74 = 3,191,004.78 : x
  2. Step 2: Convert to fraction form
    10,378,867.30/15,569,786.74 = 3,191,004.78/x
  3. Step 3: Cross multiply
    10,378,867.30x = 15,569,786.74 × 3,191,004.78
  4. Step 4: Simplify right side
    10,378,867.30x = 49,683,263,910,920.62
  5. Step 5: Solve for x
    x = 49,683,263,910,920.62/10,378,867.30
  6. Step 6: Final answer
    x = 4,786,963.98

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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.