Home / 20,952,005.20-31,404,679.80-8,168,261.20

Finding the Fourth Proportional to 20,952,005.20, 31,404,679.80 and 8,168,261.20

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Solution

The fourth proportional to 20,952,005.20, 31,404,679.80 and 8,168,261.20 is: 12,243,297.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,952,005.20 : 31,404,679.80 = 8,168,261.20 : x
  2. Step 2: Convert to fraction form
    20,952,005.20/31,404,679.80 = 8,168,261.20/x
  3. Step 3: Cross multiply
    20,952,005.20x = 31,404,679.80 × 8,168,261.20
  4. Step 4: Simplify right side
    20,952,005.20x = 256,521,627,508,763.78
  5. Step 5: Solve for x
    x = 256,521,627,508,763.78/20,952,005.20
  6. Step 6: Final answer
    x = 12,243,297.24

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.