Home / 15,234,121.90-21,023,085.94-8,707,891.49

Finding the Fourth Proportional to 15,234,121.90, 21,023,085.94 and 8,707,891.49

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Solution

The fourth proportional to 15,234,121.90, 21,023,085.94 and 8,707,891.49 is: 12,016,888.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,234,121.90 : 21,023,085.94 = 8,707,891.49 : x
  2. Step 2: Convert to fraction form
    15,234,121.90/21,023,085.94 = 8,707,891.49/x
  3. Step 3: Cross multiply
    15,234,121.90x = 21,023,085.94 × 8,707,891.49
  4. Step 4: Simplify right side
    15,234,121.90x = 183,066,751,150,464.66
  5. Step 5: Solve for x
    x = 183,066,751,150,464.66/15,234,121.90
  6. Step 6: Final answer
    x = 12,016,888.95

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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.