Home / 18,972,022.80-28,458,034.20-5,510,211.60

Finding the Fourth Proportional to 18,972,022.80, 28,458,034.20 and 5,510,211.60

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Solution

The fourth proportional to 18,972,022.80, 28,458,034.20 and 5,510,211.60 is: 8,265,317.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,972,022.80 : 28,458,034.20 = 5,510,211.60 : x
  2. Step 2: Convert to fraction form
    18,972,022.80/28,458,034.20 = 5,510,211.60/x
  3. Step 3: Cross multiply
    18,972,022.80x = 28,458,034.20 × 5,510,211.60
  4. Step 4: Simplify right side
    18,972,022.80x = 156,809,790,162,036.72
  5. Step 5: Solve for x
    x = 156,809,790,162,036.72/18,972,022.80
  6. Step 6: Final answer
    x = 8,265,317.40

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1.5x scale

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.