Home / 19,886,131.56-27,455,469.78-13,617,149.40

Finding the Fourth Proportional to 19,886,131.56, 27,455,469.78 and 13,617,149.40

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Solution

The fourth proportional to 19,886,131.56, 27,455,469.78 and 13,617,149.40 is: 18,800,299.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,886,131.56 : 27,455,469.78 = 13,617,149.40 : x
  2. Step 2: Convert to fraction form
    19,886,131.56/27,455,469.78 = 13,617,149.40/x
  3. Step 3: Cross multiply
    19,886,131.56x = 27,455,469.78 × 13,617,149.40
  4. Step 4: Simplify right side
    19,886,131.56x = 373,865,233,841,445.19
  5. Step 5: Solve for x
    x = 373,865,233,841,445.19/19,886,131.56
  6. Step 6: Final answer
    x = 18,800,299.73

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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.