Home / 7,870,977.20-11,811,714.60-3,608,951.60

Finding the Fourth Proportional to 7,870,977.20, 11,811,714.60 and 3,608,951.60

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Solution

The fourth proportional to 7,870,977.20, 11,811,714.60 and 3,608,951.60 is: 5,415,834.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,870,977.20 : 11,811,714.60 = 3,608,951.60 : x
  2. Step 2: Convert to fraction form
    7,870,977.20/11,811,714.60 = 3,608,951.60/x
  3. Step 3: Cross multiply
    7,870,977.20x = 11,811,714.60 × 3,608,951.60
  4. Step 4: Simplify right side
    7,870,977.20x = 42,627,906,304,413.36
  5. Step 5: Solve for x
    x = 42,627,906,304,413.36/7,870,977.20
  6. Step 6: Final answer
    x = 5,415,834.05

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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.