Finding the Fourth Proportional to 38,487,361.67, 53,112,136.35 and 20,845,825.63
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Solution
The fourth proportional to 38,487,361.67, 53,112,136.35 and 20,845,825.63 is: 28,767,010.39
Step by Step Solution
- Step 1: Write the proportion equation
38,487,361.67 : 53,112,136.35 = 20,845,825.63 : x - Step 2: Convert to fraction form
38,487,361.67/53,112,136.35 = 20,845,825.63/x - Step 3: Cross multiply
38,487,361.67x = 53,112,136.35 × 20,845,825.63 - Step 4: Simplify right side
38,487,361.67x = 1,107,166,333,188,884.62 - Step 5: Solve for x
x = 1,107,166,333,188,884.62/38,487,361.67 - Step 6: Final answer
x = 28,767,010.39
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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.