Home / 28,156,811.39-38,856,400.04-15,279,755.39

Finding the Fourth Proportional to 28,156,811.39, 38,856,400.04 and 15,279,755.39

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Solution

The fourth proportional to 28,156,811.39, 38,856,400.04 and 15,279,755.39 is: 21,086,062.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,156,811.39 : 38,856,400.04 = 15,279,755.39 : x
  2. Step 2: Convert to fraction form
    28,156,811.39/38,856,400.04 = 15,279,755.39/x
  3. Step 3: Cross multiply
    28,156,811.39x = 38,856,400.04 × 15,279,755.39
  4. Step 4: Simplify right side
    28,156,811.39x = 593,716,287,947,186.25
  5. Step 5: Solve for x
    x = 593,716,287,947,186.25/28,156,811.39
  6. Step 6: Final answer
    x = 21,086,062.61

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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.