Home / 3,015,565.18-4,161,512.10-1,638,908.90

Finding the Fourth Proportional to 3,015,565.18, 4,161,512.10 and 1,638,908.90

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Solution

The fourth proportional to 3,015,565.18, 4,161,512.10 and 1,638,908.90 is: 2,261,711.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,015,565.18 : 4,161,512.10 = 1,638,908.90 : x
  2. Step 2: Convert to fraction form
    3,015,565.18/4,161,512.10 = 1,638,908.90/x
  3. Step 3: Cross multiply
    3,015,565.18x = 4,161,512.10 × 1,638,908.90
  4. Step 4: Simplify right side
    3,015,565.18x = 6,820,339,218,147.69
  5. Step 5: Solve for x
    x = 6,820,339,218,147.69/3,015,565.18
  6. Step 6: Final answer
    x = 2,261,711.76

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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.