Finding the Fourth Proportional to 557,638,629.80, 836,457,944.70 and 327,717,861.80
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Solution
The fourth proportional to 557,638,629.80, 836,457,944.70 and 327,717,861.80 is: 491,576,792.70
Step by Step Solution
- Step 1: Write the proportion equation
557,638,629.80 : 836,457,944.70 = 327,717,861.80 : x - Step 2: Convert to fraction form
557,638,629.80/836,457,944.70 = 327,717,861.80/x - Step 3: Cross multiply
557,638,629.80x = 836,457,944.70 × 327,717,861.80 - Step 4: Simplify right side
557,638,629.80x = 274,122,209,122,706,656 - Step 5: Solve for x
x = 274,122,209,122,706,656/557,638,629.80 - Step 6: Final answer
x = 491,576,792.70
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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.