Home / 9,978,364.32-13,770,143.88-5,394,684.48

Finding the Fourth Proportional to 9,978,364.32, 13,770,143.88 and 5,394,684.48

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Solution

The fourth proportional to 9,978,364.32, 13,770,143.88 and 5,394,684.48 is: 7,444,665.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,978,364.32 : 13,770,143.88 = 5,394,684.48 : x
  2. Step 2: Convert to fraction form
    9,978,364.32/13,770,143.88 = 5,394,684.48/x
  3. Step 3: Cross multiply
    9,978,364.32x = 13,770,143.88 × 5,394,684.48
  4. Step 4: Simplify right side
    9,978,364.32x = 74,285,581,476,803
  5. Step 5: Solve for x
    x = 74,285,581,476,803/9,978,364.32
  6. Step 6: Final answer
    x = 7,444,665.19

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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.