Home / 5,181,976.76-7,773,961.46-1,986,853.76

Finding the Fourth Proportional to 5,181,976.76, 7,773,961.46 and 1,986,853.76

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Solution

The fourth proportional to 5,181,976.76, 7,773,961.46 and 1,986,853.76 is: 2,980,662.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,181,976.76 : 7,773,961.46 = 1,986,853.76 : x
  2. Step 2: Convert to fraction form
    5,181,976.76/7,773,961.46 = 1,986,853.76/x
  3. Step 3: Cross multiply
    5,181,976.76x = 7,773,961.46 × 1,986,853.76
  4. Step 4: Simplify right side
    5,181,976.76x = 15,445,724,556,896.09
  5. Step 5: Solve for x
    x = 15,445,724,556,896.09/5,181,976.76
  6. Step 6: Final answer
    x = 2,980,662.65

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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.