Finding the Fourth Proportional to 209,485,402.84, 289,098,825.26 and 116,665,910.60
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Solution
The fourth proportional to 209,485,402.84, 289,098,825.26 and 116,665,910.60 is: 161,003,951.80
Step by Step Solution
- Step 1: Write the proportion equation
209,485,402.84 : 289,098,825.26 = 116,665,910.60 : x - Step 2: Convert to fraction form
209,485,402.84/289,098,825.26 = 116,665,910.60/x - Step 3: Cross multiply
209,485,402.84x = 289,098,825.26 × 116,665,910.60 - Step 4: Simplify right side
209,485,402.84x = 33,727,977,702,348,180 - Step 5: Solve for x
x = 33,727,977,702,348,180/209,485,402.84 - Step 6: Final answer
x = 161,003,951.80
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.