Finding the Fourth Proportional to 193,914,895.80, 290,872,343.70 and 155,651,143.80
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Solution
The fourth proportional to 193,914,895.80, 290,872,343.70 and 155,651,143.80 is: 233,476,715.70
Step by Step Solution
- Step 1: Write the proportion equation
193,914,895.80 : 290,872,343.70 = 155,651,143.80 : x - Step 2: Convert to fraction form
193,914,895.80/290,872,343.70 = 155,651,143.80/x - Step 3: Cross multiply
193,914,895.80x = 290,872,343.70 × 155,651,143.80 - Step 4: Simplify right side
193,914,895.80x = 45,274,612,996,691,728 - Step 5: Solve for x
x = 45,274,612,996,691,728/193,914,895.80 - Step 6: Final answer
x = 233,476,715.70
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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.