Home / 38,782,850.36-53,520,702.60-21,379,819.76

Finding the Fourth Proportional to 38,782,850.36, 53,520,702.60 and 21,379,819.76

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Solution

The fourth proportional to 38,782,850.36, 53,520,702.60 and 21,379,819.76 is: 29,504,354.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,782,850.36 : 53,520,702.60 = 21,379,819.76 : x
  2. Step 2: Convert to fraction form
    38,782,850.36/53,520,702.60 = 21,379,819.76/x
  3. Step 3: Cross multiply
    38,782,850.36x = 53,520,702.60 × 21,379,819.76
  4. Step 4: Simplify right side
    38,782,850.36x = 1,144,262,975,016,563.50
  5. Step 5: Solve for x
    x = 1,144,262,975,016,563.50/38,782,850.36
  6. Step 6: Final answer
    x = 29,504,354.74

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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.