Finding the Fourth Proportional to 788,928,173.67, 1,183,553,661.11 and 271,291,388.07
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Solution
The fourth proportional to 788,928,173.67, 1,183,553,661.11 and 271,291,388.07 is: 406,992,583.47
Step by Step Solution
- Step 1: Write the proportion equation
788,928,173.67 : 1,183,553,661.11 = 271,291,388.07 : x - Step 2: Convert to fraction form
788,928,173.67/1,183,553,661.11 = 271,291,388.07/x - Step 3: Cross multiply
788,928,173.67x = 1,183,553,661.11 × 271,291,388.07 - Step 4: Simplify right side
788,928,173.67x = 321,087,915,576,505,792 - Step 5: Solve for x
x = 321,087,915,576,505,792/788,928,173.67 - Step 6: Final answer
x = 406,992,583.47
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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.