Finding the Fourth Proportional to 557,638,619.80, 836,457,929.70 and 327,717,851.80
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Solution
The fourth proportional to 557,638,619.80, 836,457,929.70 and 327,717,851.80 is: 491,576,777.70
Step by Step Solution
- Step 1: Write the proportion equation
557,638,619.80 : 836,457,929.70 = 327,717,851.80 : x - Step 2: Convert to fraction form
557,638,619.80/836,457,929.70 = 327,717,851.80/x - Step 3: Cross multiply
557,638,619.80x = 836,457,929.70 × 327,717,851.80 - Step 4: Simplify right side
557,638,619.80x = 274,122,195,842,359,456 - Step 5: Solve for x
x = 274,122,195,842,359,456/557,638,619.80 - Step 6: Final answer
x = 491,576,777.70
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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.