Home / 38,689,200.18-53,391,093.72-21,285,171.60

Finding the Fourth Proportional to 38,689,200.18, 53,391,093.72 and 21,285,171.60

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Solution

The fourth proportional to 38,689,200.18, 53,391,093.72 and 21,285,171.60 is: 29,373,535.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,689,200.18 : 53,391,093.72 = 21,285,171.60 : x
  2. Step 2: Convert to fraction form
    38,689,200.18/53,391,093.72 = 21,285,171.60/x
  3. Step 3: Cross multiply
    38,689,200.18x = 53,391,093.72 × 21,285,171.60
  4. Step 4: Simplify right side
    38,689,200.18x = 1,136,438,591,741,882.50
  5. Step 5: Solve for x
    x = 1,136,438,591,741,882.50/38,689,200.18
  6. Step 6: Final answer
    x = 29,373,535.42

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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.