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Finding the Fourth Proportional to 6,461,995.85, 8,917,190.57 and 3,561,377.57

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Solution

The fourth proportional to 6,461,995.85, 8,917,190.57 and 3,561,377.57 is: 4,914,500.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,461,995.85 : 8,917,190.57 = 3,561,377.57 : x
  2. Step 2: Convert to fraction form
    6,461,995.85/8,917,190.57 = 3,561,377.57/x
  3. Step 3: Cross multiply
    6,461,995.85x = 8,917,190.57 × 3,561,377.57
  4. Step 4: Simplify right side
    6,461,995.85x = 31,757,482,483,413.52
  5. Step 5: Solve for x
    x = 31,757,482,483,413.52/6,461,995.85
  6. Step 6: Final answer
    x = 4,914,500.60

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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.