Finding the Fourth Proportional to 1,328,355,163.80, 1,993,383,051.30 and 775,656,523.80
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Solution
The fourth proportional to 1,328,355,163.80, 1,993,383,051.30 and 775,656,523.80 is: 1,163,981,298.31
Step by Step Solution
- Step 1: Write the proportion equation
1,328,355,163.80 : 1,993,383,051.30 = 775,656,523.80 : x - Step 2: Convert to fraction form
1,328,355,163.80/1,993,383,051.30 = 775,656,523.80/x - Step 3: Cross multiply
1,328,355,163.80x = 1,993,383,051.30 × 775,656,523.80 - Step 4: Simplify right side
1,328,355,163.80x = 1,546,180,568,173,195,008 - Step 5: Solve for x
x = 1,546,180,568,173,195,008/1,328,355,163.80 - Step 6: Final answer
x = 1,163,981,298.31
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.