Finding the Fourth Proportional to 5,737,548.56, 7,917,991.21 and 3,159,321.60
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Solution
The fourth proportional to 5,737,548.56, 7,917,991.21 and 3,159,321.60 is: 4,359,959.73
Step by Step Solution
- Step 1: Write the proportion equation
5,737,548.56 : 7,917,991.21 = 3,159,321.60 : x - Step 2: Convert to fraction form
5,737,548.56/7,917,991.21 = 3,159,321.60/x - Step 3: Cross multiply
5,737,548.56x = 7,917,991.21 × 3,159,321.60 - Step 4: Simplify right side
5,737,548.56x = 25,015,480,658,363.14 - Step 5: Solve for x
x = 25,015,480,658,363.14/5,737,548.56 - Step 6: Final answer
x = 4,359,959.73
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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.