Finding the Fourth Proportional to 5,126,276.16, 7,690,580.64 and 2,728,857.60
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Solution
The fourth proportional to 5,126,276.16, 7,690,580.64 and 2,728,857.60 is: 4,093,907.31
Step by Step Solution
- Step 1: Write the proportion equation
5,126,276.16 : 7,690,580.64 = 2,728,857.60 : x - Step 2: Convert to fraction form
5,126,276.16/7,690,580.64 = 2,728,857.60/x - Step 3: Cross multiply
5,126,276.16x = 7,690,580.64 × 2,728,857.60 - Step 4: Simplify right side
5,126,276.16x = 20,986,499,427,876.86 - Step 5: Solve for x
x = 20,986,499,427,876.86/5,126,276.16 - Step 6: Final answer
x = 4,093,907.31
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.