Finding the Fourth Proportional to 5,342,062.69, 7,372,072.16 and 2,894,678.28
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Solution
The fourth proportional to 5,342,062.69, 7,372,072.16 and 2,894,678.28 is: 3,994,669.92
Step by Step Solution
- Step 1: Write the proportion equation
5,342,062.69 : 7,372,072.16 = 2,894,678.28 : x - Step 2: Convert to fraction form
5,342,062.69/7,372,072.16 = 2,894,678.28/x - Step 3: Cross multiply
5,342,062.69x = 7,372,072.16 × 2,894,678.28 - Step 4: Simplify right side
5,342,062.69x = 21,339,777,160,144.68 - Step 5: Solve for x
x = 21,339,777,160,144.68/5,342,062.69 - Step 6: Final answer
x = 3,994,669.92
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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.