Home / 2,167,269.80-2,990,799.38-1,187,200.98

Finding the Fourth Proportional to 2,167,269.80, 2,990,799.38 and 1,187,200.98

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Solution

The fourth proportional to 2,167,269.80, 2,990,799.38 and 1,187,200.98 is: 1,638,319.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,167,269.80 : 2,990,799.38 = 1,187,200.98 : x
  2. Step 2: Convert to fraction form
    2,167,269.80/2,990,799.38 = 1,187,200.98/x
  3. Step 3: Cross multiply
    2,167,269.80x = 2,990,799.38 × 1,187,200.98
  4. Step 4: Simplify right side
    2,167,269.80x = 3,550,679,954,919.39
  5. Step 5: Solve for x
    x = 3,550,679,954,919.39/2,167,269.80
  6. Step 6: Final answer
    x = 1,638,319.31

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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.