Home / 13,579,286-18,739,040.84-7,467,714.64

Finding the Fourth Proportional to 13,579,286, 18,739,040.84 and 7,467,714.64

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Solution

The fourth proportional to 13,579,286, 18,739,040.84 and 7,467,714.64 is: 10,305,240.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,579,286 : 18,739,040.84 = 7,467,714.64 : x
  2. Step 2: Convert to fraction form
    13,579,286/18,739,040.84 = 7,467,714.64/x
  3. Step 3: Cross multiply
    13,579,286x = 18,739,040.84 × 7,467,714.64
  4. Step 4: Simplify right side
    13,579,286x = 139,937,809,620,425.89
  5. Step 5: Solve for x
    x = 139,937,809,620,425.89/13,579,286
  6. Step 6: Final answer
    x = 10,305,240.62

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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.