Home / 14,191,939.20-21,283,243.20-5,215,324.80

Finding the Fourth Proportional to 14,191,939.20, 21,283,243.20 and 5,215,324.80

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Solution

The fourth proportional to 14,191,939.20, 21,283,243.20 and 5,215,324.80 is: 7,821,272.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,191,939.20 : 21,283,243.20 = 5,215,324.80 : x
  2. Step 2: Convert to fraction form
    14,191,939.20/21,283,243.20 = 5,215,324.80/x
  3. Step 3: Cross multiply
    14,191,939.20x = 21,283,243.20 × 5,215,324.80
  4. Step 4: Simplify right side
    14,191,939.20x = 110,999,026,085,391.36
  5. Step 5: Solve for x
    x = 110,999,026,085,391.36/14,191,939.20
  6. Step 6: Final answer
    x = 7,821,272.66

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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.