Finding the Fourth Proportional to 11,643,871.60, 16,057,644.42 and 9,202,315.96
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Solution
The fourth proportional to 11,643,871.60, 16,057,644.42 and 9,202,315.96 is: 12,690,582.88
Step by Step Solution
- Step 1: Write the proportion equation
11,643,871.60 : 16,057,644.42 = 9,202,315.96 : x - Step 2: Convert to fraction form
11,643,871.60/16,057,644.42 = 9,202,315.96/x - Step 3: Cross multiply
11,643,871.60x = 16,057,644.42 × 9,202,315.96 - Step 4: Simplify right side
11,643,871.60x = 147,767,517,526,170.97 - Step 5: Solve for x
x = 147,767,517,526,170.97/11,643,871.60 - Step 6: Final answer
x = 12,690,582.88
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.