Finding the Fourth Proportional to 5,390,310.97, 7,438,590.63 and 2,942,921.95
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Solution
The fourth proportional to 5,390,310.97, 7,438,590.63 and 2,942,921.95 is: 4,061,211.27
Step by Step Solution
- Step 1: Write the proportion equation
5,390,310.97 : 7,438,590.63 = 2,942,921.95 : x - Step 2: Convert to fraction form
5,390,310.97/7,438,590.63 = 2,942,921.95/x - Step 3: Cross multiply
5,390,310.97x = 7,438,590.63 × 2,942,921.95 - Step 4: Simplify right side
5,390,310.97x = 21,891,191,642,091.33 - Step 5: Solve for x
x = 21,891,191,642,091.33/5,390,310.97 - Step 6: Final answer
x = 4,061,211.27
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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.