Finding the Fourth Proportional to 290,174,477.20, 434,694,845.40 and 174,816,350.80
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Solution
The fourth proportional to 290,174,477.20, 434,694,845.40 and 174,816,350.80 is: 261,883,013.69
Step by Step Solution
- Step 1: Write the proportion equation
290,174,477.20 : 434,694,845.40 = 174,816,350.80 : x - Step 2: Convert to fraction form
290,174,477.20/434,694,845.40 = 174,816,350.80/x - Step 3: Cross multiply
290,174,477.20x = 434,694,845.40 × 174,816,350.80 - Step 4: Simplify right side
290,174,477.20x = 75,991,766,584,398,160 - Step 5: Solve for x
x = 75,991,766,584,398,160/290,174,477.20 - Step 6: Final answer
x = 261,883,013.69
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.