Finding the Fourth Proportional to 7,761,836.14, 11,644,378.97 and 2,643,862.48
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Solution
The fourth proportional to 7,761,836.14, 11,644,378.97 and 2,643,862.48 is: 3,966,347.15
Step by Step Solution
- Step 1: Write the proportion equation
7,761,836.14 : 11,644,378.97 = 2,643,862.48 : x - Step 2: Convert to fraction form
7,761,836.14/11,644,378.97 = 2,643,862.48/x - Step 3: Cross multiply
7,761,836.14x = 11,644,378.97 × 2,643,862.48 - Step 4: Simplify right side
7,761,836.14x = 30,786,136,619,353.79 - Step 5: Solve for x
x = 30,786,136,619,353.79/7,761,836.14 - Step 6: Final answer
x = 3,966,347.15
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.