Home / 13,664,531.70-20,496,797.55-8,638,125.30

Finding the Fourth Proportional to 13,664,531.70, 20,496,797.55 and 8,638,125.30

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Solution

The fourth proportional to 13,664,531.70, 20,496,797.55 and 8,638,125.30 is: 12,957,187.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,664,531.70 : 20,496,797.55 = 8,638,125.30 : x
  2. Step 2: Convert to fraction form
    13,664,531.70/20,496,797.55 = 8,638,125.30/x
  3. Step 3: Cross multiply
    13,664,531.70x = 20,496,797.55 × 8,638,125.30
  4. Step 4: Simplify right side
    13,664,531.70x = 177,053,905,485,633.03
  5. Step 5: Solve for x
    x = 177,053,905,485,633.03/13,664,531.70
  6. Step 6: Final answer
    x = 12,957,187.95

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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.