Finding the Fourth Proportional to 201,679,409.70, 302,519,114.55 and 197,200,433.70
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Solution
The fourth proportional to 201,679,409.70, 302,519,114.55 and 197,200,433.70 is: 295,800,650.55
Step by Step Solution
- Step 1: Write the proportion equation
201,679,409.70 : 302,519,114.55 = 197,200,433.70 : x - Step 2: Convert to fraction form
201,679,409.70/302,519,114.55 = 197,200,433.70/x - Step 3: Cross multiply
201,679,409.70x = 302,519,114.55 × 197,200,433.70 - Step 4: Simplify right side
201,679,409.70x = 59,656,900,591,799,976 - Step 5: Solve for x
x = 59,656,900,591,799,976/201,679,409.70 - Step 6: Final answer
x = 295,800,650.55
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Double scale
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Similar ratio
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1.5x scale
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.