Finding the Fourth Proportional to 5,139,843.66, 7,092,987.75 and 2,848,042.62
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Solution
The fourth proportional to 5,139,843.66, 7,092,987.75 and 2,848,042.62 is: 3,930,300.75
Step by Step Solution
- Step 1: Write the proportion equation
5,139,843.66 : 7,092,987.75 = 2,848,042.62 : x - Step 2: Convert to fraction form
5,139,843.66/7,092,987.75 = 2,848,042.62/x - Step 3: Cross multiply
5,139,843.66x = 7,092,987.75 × 2,848,042.62 - Step 4: Simplify right side
5,139,843.66x = 20,201,131,415,137.91 - Step 5: Solve for x
x = 20,201,131,415,137.91/5,139,843.66 - Step 6: Final answer
x = 3,930,300.75
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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.