Finding the Fourth Proportional to 5,185,072.62, 7,158,770.70 and 4,640,271.79
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Solution
The fourth proportional to 5,185,072.62, 7,158,770.70 and 4,640,271.79 is: 6,406,591.41
Step by Step Solution
- Step 1: Write the proportion equation
5,185,072.62 : 7,158,770.70 = 4,640,271.79 : x - Step 2: Convert to fraction form
5,185,072.62/7,158,770.70 = 4,640,271.79/x - Step 3: Cross multiply
5,185,072.62x = 7,158,770.70 × 4,640,271.79 - Step 4: Simplify right side
5,185,072.62x = 33,218,641,730,288.55 - Step 5: Solve for x
x = 33,218,641,730,288.55/5,185,072.62 - Step 6: Final answer
x = 6,406,591.41
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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.