Home / 13,111,912.80-19,667,869.20-12,272,104.80

Finding the Fourth Proportional to 13,111,912.80, 19,667,869.20 and 12,272,104.80

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Solution

The fourth proportional to 13,111,912.80, 19,667,869.20 and 12,272,104.80 is: 18,408,157.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,111,912.80 : 19,667,869.20 = 12,272,104.80 : x
  2. Step 2: Convert to fraction form
    13,111,912.80/19,667,869.20 = 12,272,104.80/x
  3. Step 3: Cross multiply
    13,111,912.80x = 19,667,869.20 × 12,272,104.80
  4. Step 4: Simplify right side
    13,111,912.80x = 241,366,152,015,092.16
  5. Step 5: Solve for x
    x = 241,366,152,015,092.16/13,111,912.80
  6. Step 6: Final answer
    x = 18,408,157.20

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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.