Home / 12,305,415.06-16,978,573.89-7,145,722.26

Finding the Fourth Proportional to 12,305,415.06, 16,978,573.89 and 7,145,722.26

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Solution

The fourth proportional to 12,305,415.06, 16,978,573.89 and 7,145,722.26 is: 9,859,413.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,305,415.06 : 16,978,573.89 = 7,145,722.26 : x
  2. Step 2: Convert to fraction form
    12,305,415.06/16,978,573.89 = 7,145,722.26/x
  3. Step 3: Cross multiply
    12,305,415.06x = 16,978,573.89 × 7,145,722.26
  4. Step 4: Simplify right side
    12,305,415.06x = 121,324,173,388,827.80
  5. Step 5: Solve for x
    x = 121,324,173,388,827.80/12,305,415.06
  6. Step 6: Final answer
    x = 9,859,413.34

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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.