Home / 18,379,434.60-27,575,056.80-12,321,007.20

Finding the Fourth Proportional to 18,379,434.60, 27,575,056.80 and 12,321,007.20

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Solution

The fourth proportional to 18,379,434.60, 27,575,056.80 and 12,321,007.20 is: 18,485,469.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,379,434.60 : 27,575,056.80 = 12,321,007.20 : x
  2. Step 2: Convert to fraction form
    18,379,434.60/27,575,056.80 = 12,321,007.20/x
  3. Step 3: Cross multiply
    18,379,434.60x = 27,575,056.80 × 12,321,007.20
  4. Step 4: Simplify right side
    18,379,434.60x = 339,752,473,373,208.94
  5. Step 5: Solve for x
    x = 339,752,473,373,208.94/18,379,434.60
  6. Step 6: Final answer
    x = 18,485,469.26

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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.