Home / 13,839,942.80-20,759,914.20-7,462,650.80

Finding the Fourth Proportional to 13,839,942.80, 20,759,914.20 and 7,462,650.80

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Solution

The fourth proportional to 13,839,942.80, 20,759,914.20 and 7,462,650.80 is: 11,193,976.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,839,942.80 : 20,759,914.20 = 7,462,650.80 : x
  2. Step 2: Convert to fraction form
    13,839,942.80/20,759,914.20 = 7,462,650.80/x
  3. Step 3: Cross multiply
    13,839,942.80x = 20,759,914.20 × 7,462,650.80
  4. Step 4: Simplify right side
    13,839,942.80x = 154,923,990,312,561.34
  5. Step 5: Solve for x
    x = 154,923,990,312,561.34/13,839,942.80
  6. Step 6: Final answer
    x = 11,193,976.20

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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.