Finding the Fourth Proportional to 79,135,067.80, 118,702,601.70 and 48,901,979.80
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Solution
The fourth proportional to 79,135,067.80, 118,702,601.70 and 48,901,979.80 is: 73,352,969.70
Step by Step Solution
- Step 1: Write the proportion equation
79,135,067.80 : 118,702,601.70 = 48,901,979.80 : x - Step 2: Convert to fraction form
79,135,067.80/118,702,601.70 = 48,901,979.80/x - Step 3: Cross multiply
79,135,067.80x = 118,702,601.70 × 48,901,979.80 - Step 4: Simplify right side
79,135,067.80x = 5,804,792,230,540,845 - Step 5: Solve for x
x = 5,804,792,230,540,845/79,135,067.80 - Step 6: Final answer
x = 73,352,969.70
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Similar ratio
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1.5x scale
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.