Home / 3,171,218.72-4,376,284.80-1,813,120.16

Finding the Fourth Proportional to 3,171,218.72, 4,376,284.80 and 1,813,120.16

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Solution

The fourth proportional to 3,171,218.72, 4,376,284.80 and 1,813,120.16 is: 2,502,107.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,171,218.72 : 4,376,284.80 = 1,813,120.16 : x
  2. Step 2: Convert to fraction form
    3,171,218.72/4,376,284.80 = 1,813,120.16/x
  3. Step 3: Cross multiply
    3,171,218.72x = 4,376,284.80 × 1,813,120.16
  4. Step 4: Simplify right side
    3,171,218.72x = 7,934,730,196,781.57
  5. Step 5: Solve for x
    x = 7,934,730,196,781.57/3,171,218.72
  6. Step 6: Final answer
    x = 2,502,107.52

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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.