Home / 13,121,213.22-18,107,282.01-7,319,994.98

Finding the Fourth Proportional to 13,121,213.22, 18,107,282.01 and 7,319,994.98

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Solution

The fourth proportional to 13,121,213.22, 18,107,282.01 and 7,319,994.98 is: 10,101,597.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,121,213.22 : 18,107,282.01 = 7,319,994.98 : x
  2. Step 2: Convert to fraction form
    13,121,213.22/18,107,282.01 = 7,319,994.98/x
  3. Step 3: Cross multiply
    13,121,213.22x = 18,107,282.01 × 7,319,994.98
  4. Step 4: Simplify right side
    13,121,213.22x = 132,545,213,414,644.33
  5. Step 5: Solve for x
    x = 132,545,213,414,644.33/13,121,213.22
  6. Step 6: Final answer
    x = 10,101,597.41

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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.