Home / 14,721,418.78-20,315,913.95-8,195,489.35

Finding the Fourth Proportional to 14,721,418.78, 20,315,913.95 and 8,195,489.35

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Solution

The fourth proportional to 14,721,418.78, 20,315,913.95 and 8,195,489.35 is: 11,309,973.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,721,418.78 : 20,315,913.95 = 8,195,489.35 : x
  2. Step 2: Convert to fraction form
    14,721,418.78/20,315,913.95 = 8,195,489.35/x
  3. Step 3: Cross multiply
    14,721,418.78x = 20,315,913.95 × 8,195,489.35
  4. Step 4: Simplify right side
    14,721,418.78x = 166,498,856,382,440.38
  5. Step 5: Solve for x
    x = 166,498,856,382,440.38/14,721,418.78
  6. Step 6: Final answer
    x = 11,309,973.51

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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.