Home / 15,012,125.16-20,718,651.34-8,397,081.24

Finding the Fourth Proportional to 15,012,125.16, 20,718,651.34 and 8,397,081.24

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Solution

The fourth proportional to 15,012,125.16, 20,718,651.34 and 8,397,081.24 is: 11,589,045.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,012,125.16 : 20,718,651.34 = 8,397,081.24 : x
  2. Step 2: Convert to fraction form
    15,012,125.16/20,718,651.34 = 8,397,081.24/x
  3. Step 3: Cross multiply
    15,012,125.16x = 20,718,651.34 × 8,397,081.24
  4. Step 4: Simplify right side
    15,012,125.16x = 173,976,198,485,214.88
  5. Step 5: Solve for x
    x = 173,976,198,485,214.88/15,012,125.16
  6. Step 6: Final answer
    x = 11,589,045.30

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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.