Finding the Fourth Proportional to 5,320,976.26, 7,979,782.62 and 1,909,186.60
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Solution
The fourth proportional to 5,320,976.26, 7,979,782.62 and 1,909,186.60 is: 2,863,176.47
Step by Step Solution
- Step 1: Write the proportion equation
5,320,976.26 : 7,979,782.62 = 1,909,186.60 : x - Step 2: Convert to fraction form
5,320,976.26/7,979,782.62 = 1,909,186.60/x - Step 3: Cross multiply
5,320,976.26x = 7,979,782.62 × 1,909,186.60 - Step 4: Simplify right side
5,320,976.26x = 15,234,894,049,016.89 - Step 5: Solve for x
x = 15,234,894,049,016.89/5,320,976.26 - Step 6: Final answer
x = 2,863,176.47
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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.