Home / 18,467,999.40-27,701,999.10-12,421,381.80

Finding the Fourth Proportional to 18,467,999.40, 27,701,999.10 and 12,421,381.80

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Solution

The fourth proportional to 18,467,999.40, 27,701,999.10 and 12,421,381.80 is: 18,632,072.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,467,999.40 : 27,701,999.10 = 12,421,381.80 : x
  2. Step 2: Convert to fraction form
    18,467,999.40/27,701,999.10 = 12,421,381.80/x
  3. Step 3: Cross multiply
    18,467,999.40x = 27,701,999.10 × 12,421,381.80
  4. Step 4: Simplify right side
    18,467,999.40x = 344,097,107,444,356.44
  5. Step 5: Solve for x
    x = 344,097,107,444,356.44/18,467,999.40
  6. Step 6: Final answer
    x = 18,632,072.70

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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.