Home / 20,618,222.06-28,453,212.70-11,450,864.54

Finding the Fourth Proportional to 20,618,222.06, 28,453,212.70 and 11,450,864.54

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Solution

The fourth proportional to 20,618,222.06, 28,453,212.70 and 11,450,864.54 is: 15,802,229.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,618,222.06 : 28,453,212.70 = 11,450,864.54 : x
  2. Step 2: Convert to fraction form
    20,618,222.06/28,453,212.70 = 11,450,864.54/x
  3. Step 3: Cross multiply
    20,618,222.06x = 28,453,212.70 × 11,450,864.54
  4. Step 4: Simplify right side
    20,618,222.06x = 325,813,884,355,507.62
  5. Step 5: Solve for x
    x = 325,813,884,355,507.62/20,618,222.06
  6. Step 6: Final answer
    x = 15,802,229.86

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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.