Home / 10,378,861.76-15,569,778.44-3,190,999.20

Finding the Fourth Proportional to 10,378,861.76, 15,569,778.44 and 3,190,999.20

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Solution

The fourth proportional to 10,378,861.76, 15,569,778.44 and 3,190,999.20 is: 4,786,955.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,378,861.76 : 15,569,778.44 = 3,190,999.20 : x
  2. Step 2: Convert to fraction form
    10,378,861.76/15,569,778.44 = 3,190,999.20/x
  3. Step 3: Cross multiply
    10,378,861.76x = 15,569,778.44 × 3,190,999.20
  4. Step 4: Simplify right side
    10,378,861.76x = 49,683,150,546,217.25
  5. Step 5: Solve for x
    x = 49,683,150,546,217.25/10,378,861.76
  6. Step 6: Final answer
    x = 4,786,955.61

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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.