Finding the Fourth Proportional to 5,168,110, 7,131,991.80 and 2,876,811.96
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Solution
The fourth proportional to 5,168,110, 7,131,991.80 and 2,876,811.96 is: 3,970,000.50
Step by Step Solution
- Step 1: Write the proportion equation
5,168,110 : 7,131,991.80 = 2,876,811.96 : x - Step 2: Convert to fraction form
5,168,110/7,131,991.80 = 2,876,811.96/x - Step 3: Cross multiply
5,168,110x = 7,131,991.80 × 2,876,811.96 - Step 4: Simplify right side
5,168,110x = 20,517,399,308,861.93 - Step 5: Solve for x
x = 20,517,399,308,861.93/5,168,110 - Step 6: Final answer
x = 3,970,000.50
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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.