Finding the Fourth Proportional to 403,691,540.82, 557,094,539.79 and 218,052,556.14
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Solution
The fourth proportional to 403,691,540.82, 557,094,539.79 and 218,052,556.14 is: 300,912,642.77
Step by Step Solution
- Step 1: Write the proportion equation
403,691,540.82 : 557,094,539.79 = 218,052,556.14 : x - Step 2: Convert to fraction form
403,691,540.82/557,094,539.79 = 218,052,556.14/x - Step 3: Cross multiply
403,691,540.82x = 557,094,539.79 × 218,052,556.14 - Step 4: Simplify right side
403,691,540.82x = 121,475,888,412,846,416 - Step 5: Solve for x
x = 121,475,888,412,846,416/403,691,540.82 - Step 6: Final answer
x = 300,912,642.77
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.