Home / 13,872,516.30-20,808,774.45-13,305,645.90

Finding the Fourth Proportional to 13,872,516.30, 20,808,774.45 and 13,305,645.90

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Solution

The fourth proportional to 13,872,516.30, 20,808,774.45 and 13,305,645.90 is: 19,958,468.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,872,516.30 : 20,808,774.45 = 13,305,645.90 : x
  2. Step 2: Convert to fraction form
    13,872,516.30/20,808,774.45 = 13,305,645.90/x
  3. Step 3: Cross multiply
    13,872,516.30x = 20,808,774.45 × 13,305,645.90
  4. Step 4: Simplify right side
    13,872,516.30x = 276,874,184,444,667.25
  5. Step 5: Solve for x
    x = 276,874,184,444,667.25/13,872,516.30
  6. Step 6: Final answer
    x = 19,958,468.85

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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.