Finding the Fourth Proportional to 275,190,454.56, 379,758,021.84 and 149,738,418.36
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Solution
The fourth proportional to 275,190,454.56, 379,758,021.84 and 149,738,418.36 is: 206,636,402.56
Step by Step Solution
- Step 1: Write the proportion equation
275,190,454.56 : 379,758,021.84 = 149,738,418.36 : x - Step 2: Convert to fraction form
275,190,454.56/379,758,021.84 = 149,738,418.36/x - Step 3: Cross multiply
275,190,454.56x = 379,758,021.84 × 149,738,418.36 - Step 4: Simplify right side
275,190,454.56x = 56,864,365,549,843,936 - Step 5: Solve for x
x = 56,864,365,549,843,936/275,190,454.56 - Step 6: Final answer
x = 206,636,402.56
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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.