Finding the Fourth Proportional to 2,086,214,922.30, 3,129,322,383.45 and 1,259,717,879.10
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Solution
The fourth proportional to 2,086,214,922.30, 3,129,322,383.45 and 1,259,717,879.10 is: 1,889,576,818.65
Step by Step Solution
- Step 1: Write the proportion equation
2,086,214,922.30 : 3,129,322,383.45 = 1,259,717,879.10 : x - Step 2: Convert to fraction form
2,086,214,922.30/3,129,322,383.45 = 1,259,717,879.10/x - Step 3: Cross multiply
2,086,214,922.30x = 3,129,322,383.45 × 1,259,717,879.10 - Step 4: Simplify right side
2,086,214,922.30x = 3,942,063,355,899,790,336 - Step 5: Solve for x
x = 3,942,063,355,899,790,336/2,086,214,922.30 - Step 6: Final answer
x = 1,889,576,818.65
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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.