Finding the Fourth Proportional to 256,519,804.02, 353,987,845.79 and 139,042,611.99
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Solution
The fourth proportional to 256,519,804.02, 353,987,845.79 and 139,042,611.99 is: 191,873,664.02
Step by Step Solution
- Step 1: Write the proportion equation
256,519,804.02 : 353,987,845.79 = 139,042,611.99 : x - Step 2: Convert to fraction form
256,519,804.02/353,987,845.79 = 139,042,611.99/x - Step 3: Cross multiply
256,519,804.02x = 353,987,845.79 × 139,042,611.99 - Step 4: Simplify right side
256,519,804.02x = 49,219,394,691,354,928 - Step 5: Solve for x
x = 49,219,394,691,354,928/256,519,804.02 - Step 6: Final answer
x = 191,873,664.02
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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.