Finding the Fourth Proportional to 7,643,704.75, 10,548,603.61 and 4,381,149.08
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Solution
The fourth proportional to 7,643,704.75, 10,548,603.61 and 4,381,149.08 is: 6,046,152.56
Step by Step Solution
- Step 1: Write the proportion equation
7,643,704.75 : 10,548,603.61 = 4,381,149.08 : x - Step 2: Convert to fraction form
7,643,704.75/10,548,603.61 = 4,381,149.08/x - Step 3: Cross multiply
7,643,704.75x = 10,548,603.61 × 4,381,149.08 - Step 4: Simplify right side
7,643,704.75x = 46,215,005,016,654.81 - Step 5: Solve for x
x = 46,215,005,016,654.81/7,643,704.75 - Step 6: Final answer
x = 6,046,152.56
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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.