Finding the Fourth Proportional to 262,783,106.82, 394,197,081.84 and 68,694,211.08
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Solution
The fourth proportional to 262,783,106.82, 394,197,081.84 and 68,694,211.08 is: 103,047,177.86
Step by Step Solution
- Step 1: Write the proportion equation
262,783,106.82 : 394,197,081.84 = 68,694,211.08 : x - Step 2: Convert to fraction form
262,783,106.82/394,197,081.84 = 68,694,211.08/x - Step 3: Cross multiply
262,783,106.82x = 394,197,081.84 × 68,694,211.08 - Step 4: Simplify right side
262,783,106.82x = 27,079,057,547,036,992 - Step 5: Solve for x
x = 27,079,057,547,036,992/262,783,106.82 - Step 6: Final answer
x = 103,047,177.86
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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.