Home / 69,087,836.60-103,667,620.80-28,177,289.72

Finding the Fourth Proportional to 69,087,836.60, 103,667,620.80 and 28,177,289.72

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Solution

The fourth proportional to 69,087,836.60, 103,667,620.80 and 28,177,289.72 is: 42,280,562.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,087,836.60 : 103,667,620.80 = 28,177,289.72 : x
  2. Step 2: Convert to fraction form
    69,087,836.60/103,667,620.80 = 28,177,289.72/x
  3. Step 3: Cross multiply
    69,087,836.60x = 103,667,620.80 × 28,177,289.72
  4. Step 4: Simplify right side
    69,087,836.60x = 2,921,072,585,530,187.50
  5. Step 5: Solve for x
    x = 2,921,072,585,530,187.50/69,087,836.60
  6. Step 6: Final answer
    x = 42,280,562.39

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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.