Finding the Fourth Proportional to 80,245,979.93, 110,737,578.80 and 47,208,356.63
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Solution
The fourth proportional to 80,245,979.93, 110,737,578.80 and 47,208,356.63 is: 65,146,429.99
Step by Step Solution
- Step 1: Write the proportion equation
80,245,979.93 : 110,737,578.80 = 47,208,356.63 : x - Step 2: Convert to fraction form
80,245,979.93/110,737,578.80 = 47,208,356.63/x - Step 3: Cross multiply
80,245,979.93x = 110,737,578.80 × 47,208,356.63 - Step 4: Simplify right side
80,245,979.93x = 5,227,739,112,935,625 - Step 5: Solve for x
x = 5,227,739,112,935,625/80,245,979.93 - Step 6: Final answer
x = 65,146,429.99
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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.