Finding the Fourth Proportional to 557,638,615.80, 836,457,923.70 and 327,717,847.80
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Solution
The fourth proportional to 557,638,615.80, 836,457,923.70 and 327,717,847.80 is: 491,576,771.70
Step by Step Solution
- Step 1: Write the proportion equation
557,638,615.80 : 836,457,923.70 = 327,717,847.80 : x - Step 2: Convert to fraction form
557,638,615.80/836,457,923.70 = 327,717,847.80/x - Step 3: Cross multiply
557,638,615.80x = 836,457,923.70 × 327,717,847.80 - Step 4: Simplify right side
557,638,615.80x = 274,122,190,530,220,640 - Step 5: Solve for x
x = 274,122,190,530,220,640/557,638,615.80 - Step 6: Final answer
x = 491,576,771.70
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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.