Finding the Fourth Proportional to 5,167,928.88, 7,131,672.24 and 2,876,088.96
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Solution
The fourth proportional to 5,167,928.88, 7,131,672.24 and 2,876,088.96 is: 3,968,964.02
Step by Step Solution
- Step 1: Write the proportion equation
5,167,928.88 : 7,131,672.24 = 2,876,088.96 : x - Step 2: Convert to fraction form
5,167,928.88/7,131,672.24 = 2,876,088.96/x - Step 3: Cross multiply
5,167,928.88x = 7,131,672.24 × 2,876,088.96 - Step 4: Simplify right side
5,167,928.88x = 20,511,323,795,802.47 - Step 5: Solve for x
x = 20,511,323,795,802.47/5,167,928.88 - Step 6: Final answer
x = 3,968,964.02
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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.