Home / 512,936,645.40-769,479,617.70-167,806,661.40

Finding the Fourth Proportional to 512,936,645.40, 769,479,617.70 and 167,806,661.40

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Solution

The fourth proportional to 512,936,645.40, 769,479,617.70 and 167,806,661.40 is: 251,734,413.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,936,645.40 : 769,479,617.70 = 167,806,661.40 : x
  2. Step 2: Convert to fraction form
    512,936,645.40/769,479,617.70 = 167,806,661.40/x
  3. Step 3: Cross multiply
    512,936,645.40x = 769,479,617.70 × 167,806,661.40
  4. Step 4: Simplify right side
    512,936,645.40x = 129,123,805,661,585,360
  5. Step 5: Solve for x
    x = 129,123,805,661,585,360/512,936,645.40
  6. Step 6: Final answer
    x = 251,734,413.63

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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.