Home / 20,231,116.12-27,921,490.74-13,267,649.80

Finding the Fourth Proportional to 20,231,116.12, 27,921,490.74 and 13,267,649.80

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Solution

The fourth proportional to 20,231,116.12, 27,921,490.74 and 13,267,649.80 is: 18,311,029.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,231,116.12 : 27,921,490.74 = 13,267,649.80 : x
  2. Step 2: Convert to fraction form
    20,231,116.12/27,921,490.74 = 13,267,649.80/x
  3. Step 3: Cross multiply
    20,231,116.12x = 27,921,490.74 × 13,267,649.80
  4. Step 4: Simplify right side
    20,231,116.12x = 370,452,561,032,262.88
  5. Step 5: Solve for x
    x = 370,452,561,032,262.88/20,231,116.12
  6. Step 6: Final answer
    x = 18,311,029.35

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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.