Home / 3,015,613.12-4,161,578.16-1,638,956.80

Finding the Fourth Proportional to 3,015,613.12, 4,161,578.16 and 1,638,956.80

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Solution

The fourth proportional to 3,015,613.12, 4,161,578.16 and 1,638,956.80 is: 2,261,777.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,015,613.12 : 4,161,578.16 = 1,638,956.80 : x
  2. Step 2: Convert to fraction form
    3,015,613.12/4,161,578.16 = 1,638,956.80/x
  3. Step 3: Cross multiply
    3,015,613.12x = 4,161,578.16 × 1,638,956.80
  4. Step 4: Simplify right side
    3,015,613.12x = 6,820,646,824,063.49
  5. Step 5: Solve for x
    x = 6,820,646,824,063.49/3,015,613.12
  6. Step 6: Final answer
    x = 2,261,777.81

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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.