Finding the Fourth Proportional to 476,857,843.44, 715,320,815.79 and 127,102,079.31
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Solution
The fourth proportional to 476,857,843.44, 715,320,815.79 and 127,102,079.31 is: 190,662,194.85
Step by Step Solution
- Step 1: Write the proportion equation
476,857,843.44 : 715,320,815.79 = 127,102,079.31 : x - Step 2: Convert to fraction form
476,857,843.44/715,320,815.79 = 127,102,079.31/x - Step 3: Cross multiply
476,857,843.44x = 715,320,815.79 × 127,102,079.31 - Step 4: Simplify right side
476,857,843.44x = 90,918,763,060,634,480 - Step 5: Solve for x
x = 90,918,763,060,634,480/476,857,843.44 - Step 6: Final answer
x = 190,662,194.85
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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.