Home / 13,578,063.38-18,737,766.25-7,383,112.50

Finding the Fourth Proportional to 13,578,063.38, 18,737,766.25 and 7,383,112.50

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Solution

The fourth proportional to 13,578,063.38, 18,737,766.25 and 7,383,112.50 is: 10,188,716.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,578,063.38 : 18,737,766.25 = 7,383,112.50 : x
  2. Step 2: Convert to fraction form
    13,578,063.38/18,737,766.25 = 7,383,112.50/x
  3. Step 3: Cross multiply
    13,578,063.38x = 18,737,766.25 × 7,383,112.50
  4. Step 4: Simplify right side
    13,578,063.38x = 138,343,036,222,453.12
  5. Step 5: Solve for x
    x = 138,343,036,222,453.12/13,578,063.38
  6. Step 6: Final answer
    x = 10,188,716.34

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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.