Finding the Fourth Proportional to 289,613,122.20, 434,419,683.30 and 134,166,629.70
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Solution
The fourth proportional to 289,613,122.20, 434,419,683.30 and 134,166,629.70 is: 201,249,944.55
Step by Step Solution
- Step 1: Write the proportion equation
289,613,122.20 : 434,419,683.30 = 134,166,629.70 : x - Step 2: Convert to fraction form
289,613,122.20/434,419,683.30 = 134,166,629.70/x - Step 3: Cross multiply
289,613,122.20x = 434,419,683.30 × 134,166,629.70 - Step 4: Simplify right side
289,613,122.20x = 58,284,624,783,702,376 - Step 5: Solve for x
x = 58,284,624,783,702,376/289,613,122.20 - Step 6: Final answer
x = 201,249,944.55
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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.