Home / 15,234,121.78-21,023,085.77-8,707,891.37

Finding the Fourth Proportional to 15,234,121.78, 21,023,085.77 and 8,707,891.37

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Solution

The fourth proportional to 15,234,121.78, 21,023,085.77 and 8,707,891.37 is: 12,016,888.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,234,121.78 : 21,023,085.77 = 8,707,891.37 : x
  2. Step 2: Convert to fraction form
    15,234,121.78/21,023,085.77 = 8,707,891.37/x
  3. Step 3: Cross multiply
    15,234,121.78x = 21,023,085.77 × 8,707,891.37
  4. Step 4: Simplify right side
    15,234,121.78x = 183,066,747,031,352.53
  5. Step 5: Solve for x
    x = 183,066,747,031,352.53/15,234,121.78
  6. Step 6: Final answer
    x = 12,016,888.78

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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.