Finding the Fourth Proportional to 6,890,768.96, 9,509,261.18 and 3,835,704.92
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Solution
The fourth proportional to 6,890,768.96, 9,509,261.18 and 3,835,704.92 is: 5,293,272.80
Step by Step Solution
- Step 1: Write the proportion equation
6,890,768.96 : 9,509,261.18 = 3,835,704.92 : x - Step 2: Convert to fraction form
6,890,768.96/9,509,261.18 = 3,835,704.92/x - Step 3: Cross multiply
6,890,768.96x = 9,509,261.18 × 3,835,704.92 - Step 4: Simplify right side
6,890,768.96x = 36,474,719,893,691 - Step 5: Solve for x
x = 36,474,719,893,691/6,890,768.96 - Step 6: Final answer
x = 5,293,272.80
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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.