Home / 12,181,278.10-18,251,983.86-7,374,397.90

Finding the Fourth Proportional to 12,181,278.10, 18,251,983.86 and 7,374,397.90

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Solution

The fourth proportional to 12,181,278.10, 18,251,983.86 and 7,374,397.90 is: 11,049,529.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,181,278.10 : 18,251,983.86 = 7,374,397.90 : x
  2. Step 2: Convert to fraction form
    12,181,278.10/18,251,983.86 = 7,374,397.90/x
  3. Step 3: Cross multiply
    12,181,278.10x = 18,251,983.86 × 7,374,397.90
  4. Step 4: Simplify right side
    12,181,278.10x = 134,597,391,448,017.89
  5. Step 5: Solve for x
    x = 134,597,391,448,017.89/12,181,278.10
  6. Step 6: Final answer
    x = 11,049,529.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.