Finding the Fourth Proportional to 643,489,611, 965,090,767.86 and 298,398,396.84
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Solution
The fourth proportional to 643,489,611, 965,090,767.86 and 298,398,396.84 is: 447,530,982.65
Step by Step Solution
- Step 1: Write the proportion equation
643,489,611 : 965,090,767.86 = 298,398,396.84 : x - Step 2: Convert to fraction form
643,489,611/965,090,767.86 = 298,398,396.84/x - Step 3: Cross multiply
643,489,611x = 965,090,767.86 × 298,398,396.84 - Step 4: Simplify right side
643,489,611x = 287,981,537,934,508,576 - Step 5: Solve for x
x = 287,981,537,934,508,576/643,489,611 - Step 6: Final answer
x = 447,530,982.65
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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.