Home / 18,888,961.60-28,340,440.80-18,189,121.60

Finding the Fourth Proportional to 18,888,961.60, 28,340,440.80 and 18,189,121.60

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Solution

The fourth proportional to 18,888,961.60, 28,340,440.80 and 18,189,121.60 is: 27,290,421.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,888,961.60 : 28,340,440.80 = 18,189,121.60 : x
  2. Step 2: Convert to fraction form
    18,888,961.60/28,340,440.80 = 18,189,121.60/x
  3. Step 3: Cross multiply
    18,888,961.60x = 28,340,440.80 × 18,189,121.60
  4. Step 4: Simplify right side
    18,888,961.60x = 515,487,723,908,801.31
  5. Step 5: Solve for x
    x = 515,487,723,908,801.31/18,888,961.60
  6. Step 6: Final answer
    x = 27,290,421.51

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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.