Home / 28,431,348.54-39,235,265.46-15,378,601.74

Finding the Fourth Proportional to 28,431,348.54, 39,235,265.46 and 15,378,601.74

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Solution

The fourth proportional to 28,431,348.54, 39,235,265.46 and 15,378,601.74 is: 21,222,472.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,431,348.54 : 39,235,265.46 = 15,378,601.74 : x
  2. Step 2: Convert to fraction form
    28,431,348.54/39,235,265.46 = 15,378,601.74/x
  3. Step 3: Cross multiply
    28,431,348.54x = 39,235,265.46 × 15,378,601.74
  4. Step 4: Simplify right side
    28,431,348.54x = 603,383,521,672,517.88
  5. Step 5: Solve for x
    x = 603,383,521,672,517.88/28,431,348.54
  6. Step 6: Final answer
    x = 21,222,472.82

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1.5x scale

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.