Home / 28,502,211.87-39,331,998.60-15,449,190.57

Finding the Fourth Proportional to 28,502,211.87, 39,331,998.60 and 15,449,190.57

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Solution

The fourth proportional to 28,502,211.87, 39,331,998.60 and 15,449,190.57 is: 21,319,311.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,502,211.87 : 39,331,998.60 = 15,449,190.57 : x
  2. Step 2: Convert to fraction form
    28,502,211.87/39,331,998.60 = 15,449,190.57/x
  3. Step 3: Cross multiply
    28,502,211.87x = 39,331,998.60 × 15,449,190.57
  4. Step 4: Simplify right side
    28,502,211.87x = 607,647,541,870,373.25
  5. Step 5: Solve for x
    x = 607,647,541,870,373.25/28,502,211.87
  6. Step 6: Final answer
    x = 21,319,311.80

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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.