Home / 21,551,279.89-29,741,460.27-12,258,611.80

Finding the Fourth Proportional to 21,551,279.89, 29,741,460.27 and 12,258,611.80

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Solution

The fourth proportional to 21,551,279.89, 29,741,460.27 and 12,258,611.80 is: 16,917,279.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,551,279.89 : 29,741,460.27 = 12,258,611.80 : x
  2. Step 2: Convert to fraction form
    21,551,279.89/29,741,460.27 = 12,258,611.80/x
  3. Step 3: Cross multiply
    21,551,279.89x = 29,741,460.27 × 12,258,611.80
  4. Step 4: Simplify right side
    21,551,279.89x = 364,589,015,815,053.19
  5. Step 5: Solve for x
    x = 364,589,015,815,053.19/21,551,279.89
  6. Step 6: Final answer
    x = 16,917,279.05

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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.