Home / 281,741,115.20-422,611,672.80-257,554,644.80

Finding the Fourth Proportional to 281,741,115.20, 422,611,672.80 and 257,554,644.80

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Solution

The fourth proportional to 281,741,115.20, 422,611,672.80 and 257,554,644.80 is: 386,331,967.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,741,115.20 : 422,611,672.80 = 257,554,644.80 : x
  2. Step 2: Convert to fraction form
    281,741,115.20/422,611,672.80 = 257,554,644.80/x
  3. Step 3: Cross multiply
    281,741,115.20x = 422,611,672.80 × 257,554,644.80
  4. Step 4: Simplify right side
    281,741,115.20x = 108,845,599,276,337,824
  5. Step 5: Solve for x
    x = 108,845,599,276,337,824/281,741,115.20
  6. Step 6: Final answer
    x = 386,331,967.20

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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.