Finding the Fourth Proportional to 394,090,376.10, 591,135,564.15 and 248,971,553.70
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Solution
The fourth proportional to 394,090,376.10, 591,135,564.15 and 248,971,553.70 is: 373,457,330.55
Step by Step Solution
- Step 1: Write the proportion equation
394,090,376.10 : 591,135,564.15 = 248,971,553.70 : x - Step 2: Convert to fraction form
394,090,376.10/591,135,564.15 = 248,971,553.70/x - Step 3: Cross multiply
394,090,376.10x = 591,135,564.15 × 248,971,553.70 - Step 4: Simplify right side
394,090,376.10x = 147,175,939,853,751,520 - Step 5: Solve for x
x = 147,175,939,853,751,520/394,090,376.10 - Step 6: Final answer
x = 373,457,330.55
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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.