Home / 260,657,512,634.88-390,775,276,052.92-81,491,275,429.29

Finding the Fourth Proportional to 260,657,512,634.88, 390,775,276,052.92 and 81,491,275,429.29

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Solution

The fourth proportional to 260,657,512,634.88, 390,775,276,052.92 and 81,491,275,429.29 is: 122,170,948,881.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,657,512,634.88 : 390,775,276,052.92 = 81,491,275,429.29 : x
  2. Step 2: Convert to fraction form
    260,657,512,634.88/390,775,276,052.92 = 81,491,275,429.29/x
  3. Step 3: Cross multiply
    260,657,512,634.88x = 390,775,276,052.92 × 81,491,275,429.29
  4. Step 4: Simplify right side
    260,657,512,634.88x = 31,844,775,651,786,117,611,520
  5. Step 5: Solve for x
    x = 31,844,775,651,786,117,611,520/260,657,512,634.88
  6. Step 6: Final answer
    x = 122,170,948,881.85

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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.