Finding the Fourth Proportional to 5,755,982.78, 8,629,419.53 and 2,161,349.30
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Solution
The fourth proportional to 5,755,982.78, 8,629,419.53 and 2,161,349.30 is: 3,240,313.69
Step by Step Solution
- Step 1: Write the proportion equation
5,755,982.78 : 8,629,419.53 = 2,161,349.30 : x - Step 2: Convert to fraction form
5,755,982.78/8,629,419.53 = 2,161,349.30/x - Step 3: Cross multiply
5,755,982.78x = 8,629,419.53 × 2,161,349.30 - Step 4: Simplify right side
5,755,982.78x = 18,651,189,806,617.98 - Step 5: Solve for x
x = 18,651,189,806,617.98/5,755,982.78 - Step 6: Final answer
x = 3,240,313.69
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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.