Finding the Fourth Proportional to 306,563,728.32, 422,994,791.22 and 176,158,342.08
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Solution
The fourth proportional to 306,563,728.32, 422,994,791.22 and 176,158,342.08 is: 243,062,222.46
Step by Step Solution
- Step 1: Write the proportion equation
306,563,728.32 : 422,994,791.22 = 176,158,342.08 : x - Step 2: Convert to fraction form
306,563,728.32/422,994,791.22 = 176,158,342.08/x - Step 3: Cross multiply
306,563,728.32x = 422,994,791.22 × 176,158,342.08 - Step 4: Simplify right side
306,563,728.32x = 74,514,061,129,790,944 - Step 5: Solve for x
x = 74,514,061,129,790,944/306,563,728.32 - Step 6: Final answer
x = 243,062,222.46
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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.