Home / 12,420,329.39-17,146,239.94-9,623,178.26

Finding the Fourth Proportional to 12,420,329.39, 17,146,239.94 and 9,623,178.26

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Solution

The fourth proportional to 12,420,329.39, 17,146,239.94 and 9,623,178.26 is: 13,284,778.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,420,329.39 : 17,146,239.94 = 9,623,178.26 : x
  2. Step 2: Convert to fraction form
    12,420,329.39/17,146,239.94 = 9,623,178.26/x
  3. Step 3: Cross multiply
    12,420,329.39x = 17,146,239.94 × 9,623,178.26
  4. Step 4: Simplify right side
    12,420,329.39x = 165,001,323,431,351.72
  5. Step 5: Solve for x
    x = 165,001,323,431,351.72/12,420,329.39
  6. Step 6: Final answer
    x = 13,284,778.39

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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.