Finding the Fourth Proportional to 290,419,578.70, 435,629,368.05 and 224,662,612.30
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Solution
The fourth proportional to 290,419,578.70, 435,629,368.05 and 224,662,612.30 is: 336,993,918.45
Step by Step Solution
- Step 1: Write the proportion equation
290,419,578.70 : 435,629,368.05 = 224,662,612.30 : x - Step 2: Convert to fraction form
290,419,578.70/435,629,368.05 = 224,662,612.30/x - Step 3: Cross multiply
290,419,578.70x = 435,629,368.05 × 224,662,612.30 - Step 4: Simplify right side
290,419,578.70x = 97,869,631,820,711,168 - Step 5: Solve for x
x = 97,869,631,820,711,168/290,419,578.70 - Step 6: Final answer
x = 336,993,918.45
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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.