Home / 91,906,979.70-137,718,751.95-79,719,266.10

Finding the Fourth Proportional to 91,906,979.70, 137,718,751.95 and 79,719,266.10

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Solution

The fourth proportional to 91,906,979.70, 137,718,751.95 and 79,719,266.10 is: 119,455,974.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,906,979.70 : 137,718,751.95 = 79,719,266.10 : x
  2. Step 2: Convert to fraction form
    91,906,979.70/137,718,751.95 = 79,719,266.10/x
  3. Step 3: Cross multiply
    91,906,979.70x = 137,718,751.95 × 79,719,266.10
  4. Step 4: Simplify right side
    91,906,979.70x = 10,978,837,833,661,942
  5. Step 5: Solve for x
    x = 10,978,837,833,661,942/91,906,979.70
  6. Step 6: Final answer
    x = 119,455,974.61

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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.