Finding the Fourth Proportional to 557,638,416.80, 836,457,625.20 and 327,717,648.80
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Solution
The fourth proportional to 557,638,416.80, 836,457,625.20 and 327,717,648.80 is: 491,576,473.20
Step by Step Solution
- Step 1: Write the proportion equation
557,638,416.80 : 836,457,625.20 = 327,717,648.80 : x - Step 2: Convert to fraction form
557,638,416.80/836,457,625.20 = 327,717,648.80/x - Step 3: Cross multiply
557,638,416.80x = 836,457,625.20 × 327,717,648.80 - Step 4: Simplify right side
557,638,416.80x = 274,121,926,251,375,648 - Step 5: Solve for x
x = 274,121,926,251,375,648/557,638,416.80 - Step 6: Final answer
x = 491,576,473.20
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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.