Home / 13,999,917.40-20,957,885.70-8,317,216.60

Finding the Fourth Proportional to 13,999,917.40, 20,957,885.70 and 8,317,216.60

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Solution

The fourth proportional to 13,999,917.40, 20,957,885.70 and 8,317,216.60 is: 12,450,878.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,999,917.40 : 20,957,885.70 = 8,317,216.60 : x
  2. Step 2: Convert to fraction form
    13,999,917.40/20,957,885.70 = 8,317,216.60/x
  3. Step 3: Cross multiply
    13,999,917.40x = 20,957,885.70 × 8,317,216.60
  4. Step 4: Simplify right side
    13,999,917.40x = 174,311,274,844,942.59
  5. Step 5: Solve for x
    x = 174,311,274,844,942.59/13,999,917.40
  6. Step 6: Final answer
    x = 12,450,878.81

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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.