Home / 8,256,409.76-12,379,708.46-3,139,214.30

Finding the Fourth Proportional to 8,256,409.76, 12,379,708.46 and 3,139,214.30

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Solution

The fourth proportional to 8,256,409.76, 12,379,708.46 and 3,139,214.30 is: 4,706,956.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,256,409.76 : 12,379,708.46 = 3,139,214.30 : x
  2. Step 2: Convert to fraction form
    8,256,409.76/12,379,708.46 = 3,139,214.30/x
  3. Step 3: Cross multiply
    8,256,409.76x = 12,379,708.46 × 3,139,214.30
  4. Step 4: Simplify right side
    8,256,409.76x = 38,862,557,811,766.91
  5. Step 5: Solve for x
    x = 38,862,557,811,766.91/8,256,409.76
  6. Step 6: Final answer
    x = 4,706,956.04

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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.