Finding the Fourth Proportional to 275,296,992.25, 379,919,873.97 and 149,843,128.93
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Solution
The fourth proportional to 275,296,992.25, 379,919,873.97 and 149,843,128.93 is: 206,788,974.31
Step by Step Solution
- Step 1: Write the proportion equation
275,296,992.25 : 379,919,873.97 = 149,843,128.93 : x - Step 2: Convert to fraction form
275,296,992.25/379,919,873.97 = 149,843,128.93/x - Step 3: Cross multiply
275,296,992.25x = 379,919,873.97 × 149,843,128.93 - Step 4: Simplify right side
275,296,992.25x = 56,928,382,658,356,064 - Step 5: Solve for x
x = 56,928,382,658,356,064/275,296,992.25 - Step 6: Final answer
x = 206,788,974.31
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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.