Finding the Fourth Proportional to 228,389,391.33, 315,169,204.99 and 129,268,010.48
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Solution
The fourth proportional to 228,389,391.33, 315,169,204.99 and 129,268,010.48 is: 178,385,238.72
Step by Step Solution
- Step 1: Write the proportion equation
228,389,391.33 : 315,169,204.99 = 129,268,010.48 : x - Step 2: Convert to fraction form
228,389,391.33/315,169,204.99 = 129,268,010.48/x - Step 3: Cross multiply
228,389,391.33x = 315,169,204.99 × 129,268,010.48 - Step 4: Simplify right side
228,389,391.33x = 40,741,296,093,737,704 - Step 5: Solve for x
x = 40,741,296,093,737,704/228,389,391.33 - Step 6: Final answer
x = 178,385,238.72
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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.