Home / 15,079,521.24-20,809,132.74-8,204,031.72

Finding the Fourth Proportional to 15,079,521.24, 20,809,132.74 and 8,204,031.72

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Solution

The fourth proportional to 15,079,521.24, 20,809,132.74 and 8,204,031.72 is: 11,321,233.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,079,521.24 : 20,809,132.74 = 8,204,031.72 : x
  2. Step 2: Convert to fraction form
    15,079,521.24/20,809,132.74 = 8,204,031.72/x
  3. Step 3: Cross multiply
    15,079,521.24x = 20,809,132.74 × 8,204,031.72
  4. Step 4: Simplify right side
    15,079,521.24x = 170,718,785,064,650.50
  5. Step 5: Solve for x
    x = 170,718,785,064,650.50/15,079,521.24
  6. Step 6: Final answer
    x = 11,321,233.77

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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.