Home / 158,802,986.79-219,149,662.94-91,816,915.46

Finding the Fourth Proportional to 158,802,986.79, 219,149,662.94 and 91,816,915.46

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Solution

The fourth proportional to 158,802,986.79, 219,149,662.94 and 91,816,915.46 is: 126,708,234.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,802,986.79 : 219,149,662.94 = 91,816,915.46 : x
  2. Step 2: Convert to fraction form
    158,802,986.79/219,149,662.94 = 91,816,915.46/x
  3. Step 3: Cross multiply
    158,802,986.79x = 219,149,662.94 × 91,816,915.46
  4. Step 4: Simplify right side
    158,802,986.79x = 20,121,646,073,694,640
  5. Step 5: Solve for x
    x = 20,121,646,073,694,640/158,802,986.79
  6. Step 6: Final answer
    x = 126,708,234.40

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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.