Home / 20,618,161.56-28,453,129.20-11,450,804.04

Finding the Fourth Proportional to 20,618,161.56, 28,453,129.20 and 11,450,804.04

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Solution

The fourth proportional to 20,618,161.56, 28,453,129.20 and 11,450,804.04 is: 15,802,146.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,618,161.56 : 28,453,129.20 = 11,450,804.04 : x
  2. Step 2: Convert to fraction form
    20,618,161.56/28,453,129.20 = 11,450,804.04/x
  3. Step 3: Cross multiply
    20,618,161.56x = 28,453,129.20 × 11,450,804.04
  4. Step 4: Simplify right side
    20,618,161.56x = 325,811,206,794,001.94
  5. Step 5: Solve for x
    x = 325,811,206,794,001.94/20,618,161.56
  6. Step 6: Final answer
    x = 15,802,146.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.