Home / 137,327,036.21-189,511,474.46-74,603,175.69

Finding the Fourth Proportional to 137,327,036.21, 189,511,474.46 and 74,603,175.69

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Solution

The fourth proportional to 137,327,036.21, 189,511,474.46 and 74,603,175.69 is: 102,952,471.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,327,036.21 : 189,511,474.46 = 74,603,175.69 : x
  2. Step 2: Convert to fraction form
    137,327,036.21/189,511,474.46 = 74,603,175.69/x
  3. Step 3: Cross multiply
    137,327,036.21x = 189,511,474.46 × 74,603,175.69
  4. Step 4: Simplify right side
    137,327,036.21x = 14,138,157,823,359,642
  5. Step 5: Solve for x
    x = 14,138,157,823,359,642/137,327,036.21
  6. Step 6: Final answer
    x = 102,952,471.81

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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.