Finding the Fourth Proportional to 274,716,379.21, 378,729,787.12 and 219,150,395.41
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Solution
The fourth proportional to 274,716,379.21, 378,729,787.12 and 219,150,395.41 is: 302,125,351.39
Step by Step Solution
- Step 1: Write the proportion equation
274,716,379.21 : 378,729,787.12 = 219,150,395.41 : x - Step 2: Convert to fraction form
274,716,379.21/378,729,787.12 = 219,150,395.41/x - Step 3: Cross multiply
274,716,379.21x = 378,729,787.12 × 219,150,395.41 - Step 4: Simplify right side
274,716,379.21x = 82,998,782,600,893,120 - Step 5: Solve for x
x = 82,998,782,600,893,120/274,716,379.21 - Step 6: Final answer
x = 302,125,351.39
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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.