Home / 308,707,908.88-426,021,905.64-169,491,504.40

Finding the Fourth Proportional to 308,707,908.88, 426,021,905.64 and 169,491,504.40

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Solution

The fourth proportional to 308,707,908.88, 426,021,905.64 and 169,491,504.40 is: 233,901,016.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,707,908.88 : 426,021,905.64 = 169,491,504.40 : x
  2. Step 2: Convert to fraction form
    308,707,908.88/426,021,905.64 = 169,491,504.40/x
  3. Step 3: Cross multiply
    308,707,908.88x = 426,021,905.64 × 169,491,504.40
  4. Step 4: Simplify right side
    308,707,908.88x = 72,207,093,694,278,448
  5. Step 5: Solve for x
    x = 72,207,093,694,278,448/308,707,908.88
  6. Step 6: Final answer
    x = 233,901,016.52

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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.