Finding the Fourth Proportional to 8,129,378.63, 12,198,791.88 and 3,641,654.63
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Solution
The fourth proportional to 8,129,378.63, 12,198,791.88 and 3,641,654.63 is: 5,464,598.09
Step by Step Solution
- Step 1: Write the proportion equation
8,129,378.63 : 12,198,791.88 = 3,641,654.63 : x - Step 2: Convert to fraction form
8,129,378.63/12,198,791.88 = 3,641,654.63/x - Step 3: Cross multiply
8,129,378.63x = 12,198,791.88 × 3,641,654.63 - Step 4: Simplify right side
8,129,378.63x = 44,423,786,869,214.45 - Step 5: Solve for x
x = 44,423,786,869,214.45/8,129,378.63 - Step 6: Final answer
x = 5,464,598.09
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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.