Finding the Fourth Proportional to 6,474,633.60, 9,719,823.60 and 3,278,114.40
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Solution
The fourth proportional to 6,474,633.60, 9,719,823.60 and 3,278,114.40 is: 4,921,157.81
Step by Step Solution
- Step 1: Write the proportion equation
6,474,633.60 : 9,719,823.60 = 3,278,114.40 : x - Step 2: Convert to fraction form
6,474,633.60/9,719,823.60 = 3,278,114.40/x - Step 3: Cross multiply
6,474,633.60x = 9,719,823.60 × 3,278,114.40 - Step 4: Simplify right side
6,474,633.60x = 31,862,693,708,619.84 - Step 5: Solve for x
x = 31,862,693,708,619.84/6,474,633.60 - Step 6: Final answer
x = 4,921,157.81
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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.