Home / 8,251,132.58-12,379,232.85-3,938,685.74

Finding the Fourth Proportional to 8,251,132.58, 12,379,232.85 and 3,938,685.74

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Solution

The fourth proportional to 8,251,132.58, 12,379,232.85 and 3,938,685.74 is: 5,909,238.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,251,132.58 : 12,379,232.85 = 3,938,685.74 : x
  2. Step 2: Convert to fraction form
    8,251,132.58/12,379,232.85 = 3,938,685.74/x
  3. Step 3: Cross multiply
    8,251,132.58x = 12,379,232.85 × 3,938,685.74
  4. Step 4: Simplify right side
    8,251,132.58x = 48,757,907,898,434.56
  5. Step 5: Solve for x
    x = 48,757,907,898,434.56/8,251,132.58
  6. Step 6: Final answer
    x = 5,909,238.21

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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.