Home / 28,738,667-39,659,360.46-19,587,296.72

Finding the Fourth Proportional to 28,738,667, 39,659,360.46 and 19,587,296.72

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Solution

The fourth proportional to 28,738,667, 39,659,360.46 and 19,587,296.72 is: 27,030,469.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,738,667 : 39,659,360.46 = 19,587,296.72 : x
  2. Step 2: Convert to fraction form
    28,738,667/39,659,360.46 = 19,587,296.72/x
  3. Step 3: Cross multiply
    28,738,667x = 39,659,360.46 × 19,587,296.72
  4. Step 4: Simplify right side
    28,738,667x = 776,819,661,055,455.62
  5. Step 5: Solve for x
    x = 776,819,661,055,455.62/28,738,667
  6. Step 6: Final answer
    x = 27,030,469.47

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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.