Home / 5,383,107.32-8,071,408.69-2,145,143.12

Finding the Fourth Proportional to 5,383,107.32, 8,071,408.69 and 2,145,143.12

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Solution

The fourth proportional to 5,383,107.32, 8,071,408.69 and 2,145,143.12 is: 3,216,418.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,383,107.32 : 8,071,408.69 = 2,145,143.12 : x
  2. Step 2: Convert to fraction form
    5,383,107.32/8,071,408.69 = 2,145,143.12/x
  3. Step 3: Cross multiply
    5,383,107.32x = 8,071,408.69 × 2,145,143.12
  4. Step 4: Simplify right side
    5,383,107.32x = 17,314,326,774,341.81
  5. Step 5: Solve for x
    x = 17,314,326,774,341.81/5,383,107.32
  6. Step 6: Final answer
    x = 3,216,418.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.