Home / 259,428,494,758.58-389,201,420,222.66-140,043,256,804.79

Finding the Fourth Proportional to 259,428,494,758.58, 389,201,420,222.66 and 140,043,256,804.79

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Solution

The fourth proportional to 259,428,494,758.58, 389,201,420,222.66 and 140,043,256,804.79 is: 210,096,560,486.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,428,494,758.58 : 389,201,420,222.66 = 140,043,256,804.79 : x
  2. Step 2: Convert to fraction form
    259,428,494,758.58/389,201,420,222.66 = 140,043,256,804.79/x
  3. Step 3: Cross multiply
    259,428,494,758.58x = 389,201,420,222.66 × 140,043,256,804.79
  4. Step 4: Simplify right side
    259,428,494,758.58x = 54,505,034,441,030,958,579,712
  5. Step 5: Solve for x
    x = 54,505,034,441,030,958,579,712/259,428,494,758.58
  6. Step 6: Final answer
    x = 210,096,560,486.74

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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.