Home / 15,065,354.90-20,790,102.92-8,540,215.22

Finding the Fourth Proportional to 15,065,354.90, 20,790,102.92 and 8,540,215.22

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Solution

The fourth proportional to 15,065,354.90, 20,790,102.92 and 8,540,215.22 is: 11,785,447.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,065,354.90 : 20,790,102.92 = 8,540,215.22 : x
  2. Step 2: Convert to fraction form
    15,065,354.90/20,790,102.92 = 8,540,215.22/x
  3. Step 3: Cross multiply
    15,065,354.90x = 20,790,102.92 × 8,540,215.22
  4. Step 4: Simplify right side
    15,065,354.90x = 177,551,953,382,750.47
  5. Step 5: Solve for x
    x = 177,551,953,382,750.47/15,065,354.90
  6. Step 6: Final answer
    x = 11,785,447.77

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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.