Home / 3,015,555.92-4,161,499.36-1,638,899.72

Finding the Fourth Proportional to 3,015,555.92, 4,161,499.36 and 1,638,899.72

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Solution

The fourth proportional to 3,015,555.92, 4,161,499.36 and 1,638,899.72 is: 2,261,699.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,015,555.92 : 4,161,499.36 = 1,638,899.72 : x
  2. Step 2: Convert to fraction form
    3,015,555.92/4,161,499.36 = 1,638,899.72/x
  3. Step 3: Cross multiply
    3,015,555.92x = 4,161,499.36 × 1,638,899.72
  4. Step 4: Simplify right side
    3,015,555.92x = 6,820,280,135,884.18
  5. Step 5: Solve for x
    x = 6,820,280,135,884.18/3,015,555.92
  6. Step 6: Final answer
    x = 2,261,699.11

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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.