Home / 3,900,063.60-5,382,360.36-2,181,342.96

Finding the Fourth Proportional to 3,900,063.60, 5,382,360.36 and 2,181,342.96

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Solution

The fourth proportional to 3,900,063.60, 5,382,360.36 and 2,181,342.96 is: 3,010,405.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,900,063.60 : 5,382,360.36 = 2,181,342.96 : x
  2. Step 2: Convert to fraction form
    3,900,063.60/5,382,360.36 = 2,181,342.96/x
  3. Step 3: Cross multiply
    3,900,063.60x = 5,382,360.36 × 2,181,342.96
  4. Step 4: Simplify right side
    3,900,063.60x = 11,740,773,879,469.07
  5. Step 5: Solve for x
    x = 11,740,773,879,469.07/3,900,063.60
  6. Step 6: Final answer
    x = 3,010,405.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.