Finding the Fourth Proportional to 275,296,832.91, 379,919,654.49 and 149,842,969.98
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Solution
The fourth proportional to 275,296,832.91, 379,919,654.49 and 149,842,969.98 is: 206,788,755.18
Step by Step Solution
- Step 1: Write the proportion equation
275,296,832.91 : 379,919,654.49 = 149,842,969.98 : x - Step 2: Convert to fraction form
275,296,832.91/379,919,654.49 = 149,842,969.98/x - Step 3: Cross multiply
275,296,832.91x = 379,919,654.49 × 149,842,969.98 - Step 4: Simplify right side
275,296,832.91x = 56,928,289,382,557,040 - Step 5: Solve for x
x = 56,928,289,382,557,040/275,296,832.91 - Step 6: Final answer
x = 206,788,755.18
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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.