Home / 12,263,721.80-18,379,836.30-9,409,686.80

Finding the Fourth Proportional to 12,263,721.80, 18,379,836.30 and 9,409,686.80

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Solution

The fourth proportional to 12,263,721.80, 18,379,836.30 and 9,409,686.80 is: 14,102,448.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,263,721.80 : 18,379,836.30 = 9,409,686.80 : x
  2. Step 2: Convert to fraction form
    12,263,721.80/18,379,836.30 = 9,409,686.80/x
  3. Step 3: Cross multiply
    12,263,721.80x = 18,379,836.30 × 9,409,686.80
  4. Step 4: Simplify right side
    12,263,721.80x = 172,948,503,018,270.88
  5. Step 5: Solve for x
    x = 172,948,503,018,270.88/12,263,721.80
  6. Step 6: Final answer
    x = 14,102,448.33

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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.