Finding the Fourth Proportional to 489,383,850.36, 675,407,221.08 and 274,837,754.28
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Solution
The fourth proportional to 489,383,850.36, 675,407,221.08 and 274,837,754.28 is: 379,308,397.14
Step by Step Solution
- Step 1: Write the proportion equation
489,383,850.36 : 675,407,221.08 = 274,837,754.28 : x - Step 2: Convert to fraction form
489,383,850.36/675,407,221.08 = 274,837,754.28/x - Step 3: Cross multiply
489,383,850.36x = 675,407,221.08 × 274,837,754.28 - Step 4: Simplify right side
489,383,850.36x = 185,627,403,866,122,656 - Step 5: Solve for x
x = 185,627,403,866,122,656/489,383,850.36 - Step 6: Final answer
x = 379,308,397.14
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.