Home / 12,379,817.80-18,569,726.70-9,545,465.80

Finding the Fourth Proportional to 12,379,817.80, 18,569,726.70 and 9,545,465.80

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Solution

The fourth proportional to 12,379,817.80, 18,569,726.70 and 9,545,465.80 is: 14,318,198.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,379,817.80 : 18,569,726.70 = 9,545,465.80 : x
  2. Step 2: Convert to fraction form
    12,379,817.80/18,569,726.70 = 9,545,465.80/x
  3. Step 3: Cross multiply
    12,379,817.80x = 18,569,726.70 × 9,545,465.80
  4. Step 4: Simplify right side
    12,379,817.80x = 177,256,691,130,196.88
  5. Step 5: Solve for x
    x = 177,256,691,130,196.88/12,379,817.80
  6. Step 6: Final answer
    x = 14,318,198.70

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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.