Home / 20,339,861.64-30,509,792.46-8,978,046.72

Finding the Fourth Proportional to 20,339,861.64, 30,509,792.46 and 8,978,046.72

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Solution

The fourth proportional to 20,339,861.64, 30,509,792.46 and 8,978,046.72 is: 13,467,070.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,339,861.64 : 30,509,792.46 = 8,978,046.72 : x
  2. Step 2: Convert to fraction form
    20,339,861.64/30,509,792.46 = 8,978,046.72/x
  3. Step 3: Cross multiply
    20,339,861.64x = 30,509,792.46 × 8,978,046.72
  4. Step 4: Simplify right side
    20,339,861.64x = 273,918,342,123,383.75
  5. Step 5: Solve for x
    x = 273,918,342,123,383.75/20,339,861.64
  6. Step 6: Final answer
    x = 13,467,070.08

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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.