Home / 13,611,704.70-20,417,557.05-12,123,669.90

Finding the Fourth Proportional to 13,611,704.70, 20,417,557.05 and 12,123,669.90

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Solution

The fourth proportional to 13,611,704.70, 20,417,557.05 and 12,123,669.90 is: 18,185,504.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,611,704.70 : 20,417,557.05 = 12,123,669.90 : x
  2. Step 2: Convert to fraction form
    13,611,704.70/20,417,557.05 = 12,123,669.90/x
  3. Step 3: Cross multiply
    13,611,704.70x = 20,417,557.05 × 12,123,669.90
  4. Step 4: Simplify right side
    13,611,704.70x = 247,535,721,838,617.81
  5. Step 5: Solve for x
    x = 247,535,721,838,617.81/13,611,704.70
  6. Step 6: Final answer
    x = 18,185,504.85

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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.