Home / 18,767,999.20-28,131,003.60-7,983,464.80

Finding the Fourth Proportional to 18,767,999.20, 28,131,003.60 and 7,983,464.80

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Solution

The fourth proportional to 18,767,999.20, 28,131,003.60 and 7,983,464.80 is: 11,966,266.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,767,999.20 : 28,131,003.60 = 7,983,464.80 : x
  2. Step 2: Convert to fraction form
    18,767,999.20/28,131,003.60 = 7,983,464.80/x
  3. Step 3: Cross multiply
    18,767,999.20x = 28,131,003.60 × 7,983,464.80
  4. Step 4: Simplify right side
    18,767,999.20x = 224,582,877,029,273.28
  5. Step 5: Solve for x
    x = 224,582,877,029,273.28/18,767,999.20
  6. Step 6: Final answer
    x = 11,966,266.34

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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.