Home / 219,884,977.20-329,864,790.60-66,529,815.60

Finding the Fourth Proportional to 219,884,977.20, 329,864,790.60 and 66,529,815.60

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Solution

The fourth proportional to 219,884,977.20, 329,864,790.60 and 66,529,815.60 is: 99,806,016.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,884,977.20 : 329,864,790.60 = 66,529,815.60 : x
  2. Step 2: Convert to fraction form
    219,884,977.20/329,864,790.60 = 66,529,815.60/x
  3. Step 3: Cross multiply
    219,884,977.20x = 329,864,790.60 × 66,529,815.60
  4. Step 4: Simplify right side
    219,884,977.20x = 21,945,843,691,550,616
  5. Step 5: Solve for x
    x = 21,945,843,691,550,616/219,884,977.20
  6. Step 6: Final answer
    x = 99,806,016.63

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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.