Home / 168,051,836,315.75-231,917,065,606.54-91,926,508,231.31

Finding the Fourth Proportional to 168,051,836,315.75, 231,917,065,606.54 and 91,926,508,231.31

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Solution

The fourth proportional to 168,051,836,315.75, 231,917,065,606.54 and 91,926,508,231.31 is: 126,861,607,155.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,051,836,315.75 : 231,917,065,606.54 = 91,926,508,231.31 : x
  2. Step 2: Convert to fraction form
    168,051,836,315.75/231,917,065,606.54 = 91,926,508,231.31/x
  3. Step 3: Cross multiply
    168,051,836,315.75x = 231,917,065,606.54 × 91,926,508,231.31
  4. Step 4: Simplify right side
    168,051,836,315.75x = 21,319,326,040,460,860,850,176
  5. Step 5: Solve for x
    x = 21,319,326,040,460,860,850,176/168,051,836,315.75
  6. Step 6: Final answer
    x = 126,861,607,155.57

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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.