Finding the Fourth Proportional to 39,245,153.15, 54,158,311.49 and 21,845,608.75
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Solution
The fourth proportional to 39,245,153.15, 54,158,311.49 and 21,845,608.75 is: 30,146,940.15
Step by Step Solution
- Step 1: Write the proportion equation
39,245,153.15 : 54,158,311.49 = 21,845,608.75 : x - Step 2: Convert to fraction form
39,245,153.15/54,158,311.49 = 21,845,608.75/x - Step 3: Cross multiply
39,245,153.15x = 54,158,311.49 × 21,845,608.75 - Step 4: Simplify right side
39,245,153.15x = 1,183,121,283,290,387.75 - Step 5: Solve for x
x = 1,183,121,283,290,387.75/39,245,153.15 - Step 6: Final answer
x = 30,146,940.15
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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.