Home / 27,980,992-41,920,336.50-20,285,578.12

Finding the Fourth Proportional to 27,980,992, 41,920,336.50 and 20,285,578.12

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Solution

The fourth proportional to 27,980,992, 41,920,336.50 and 20,285,578.12 is: 30,391,283.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,980,992 : 41,920,336.50 = 20,285,578.12 : x
  2. Step 2: Convert to fraction form
    27,980,992/41,920,336.50 = 20,285,578.12/x
  3. Step 3: Cross multiply
    27,980,992x = 41,920,336.50 × 20,285,578.12
  4. Step 4: Simplify right side
    27,980,992x = 850,378,260,887,437.38
  5. Step 5: Solve for x
    x = 850,378,260,887,437.38/27,980,992
  6. Step 6: Final answer
    x = 30,391,283.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.