Finding the Fourth Proportional to 403,691,555.79, 557,094,560.49 and 218,052,571.14
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Solution
The fourth proportional to 403,691,555.79, 557,094,560.49 and 218,052,571.14 is: 300,912,663.49
Step by Step Solution
- Step 1: Write the proportion equation
403,691,555.79 : 557,094,560.49 = 218,052,571.14 : x - Step 2: Convert to fraction form
403,691,555.79/557,094,560.49 = 218,052,571.14/x - Step 3: Cross multiply
403,691,555.79x = 557,094,560.49 × 218,052,571.14 - Step 4: Simplify right side
403,691,555.79x = 121,475,901,282,952,752 - Step 5: Solve for x
x = 121,475,901,282,952,752/403,691,555.79 - Step 6: Final answer
x = 300,912,663.49
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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.