Finding the Fourth Proportional to 5,168,106, 7,131,986.28 and 2,876,807.96
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Solution
The fourth proportional to 5,168,106, 7,131,986.28 and 2,876,807.96 is: 3,969,994.98
Step by Step Solution
- Step 1: Write the proportion equation
5,168,106 : 7,131,986.28 = 2,876,807.96 : x - Step 2: Convert to fraction form
5,168,106/7,131,986.28 = 2,876,807.96/x - Step 3: Cross multiply
5,168,106x = 7,131,986.28 × 2,876,807.96 - Step 4: Simplify right side
5,168,106x = 20,517,354,900,914.79 - Step 5: Solve for x
x = 20,517,354,900,914.79/5,168,106 - Step 6: Final answer
x = 3,969,994.98
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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.