Home / 8,256,318.71-12,379,571.93-3,139,123.18

Finding the Fourth Proportional to 8,256,318.71, 12,379,571.93 and 3,139,123.18

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Solution

The fourth proportional to 8,256,318.71, 12,379,571.93 and 3,139,123.18 is: 4,706,819.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,256,318.71 : 12,379,571.93 = 3,139,123.18 : x
  2. Step 2: Convert to fraction form
    8,256,318.71/12,379,571.93 = 3,139,123.18/x
  3. Step 3: Cross multiply
    8,256,318.71x = 12,379,571.93 × 3,139,123.18
  4. Step 4: Simplify right side
    8,256,318.71x = 38,861,001,157,295.80
  5. Step 5: Solve for x
    x = 38,861,001,157,295.80/8,256,318.71
  6. Step 6: Final answer
    x = 4,706,819.41

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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.