Finding the Fourth Proportional to 31,743,314.24, 43,809,825.84 and 18,691,787.60
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Solution
The fourth proportional to 31,743,314.24, 43,809,825.84 and 18,691,787.60 is: 25,797,052.99
Step by Step Solution
- Step 1: Write the proportion equation
31,743,314.24 : 43,809,825.84 = 18,691,787.60 : x - Step 2: Convert to fraction form
31,743,314.24/43,809,825.84 = 18,691,787.60/x - Step 3: Cross multiply
31,743,314.24x = 43,809,825.84 × 18,691,787.60 - Step 4: Simplify right side
31,743,314.24x = 818,883,959,394,271.75 - Step 5: Solve for x
x = 818,883,959,394,271.75/31,743,314.24 - Step 6: Final answer
x = 25,797,052.99
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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.