Finding the Fourth Proportional to 5,442,081.60, 8,166,232.80 and 2,078,702.40
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Solution
The fourth proportional to 5,442,081.60, 8,166,232.80 and 2,078,702.40 is: 3,119,241.67
Step by Step Solution
- Step 1: Write the proportion equation
5,442,081.60 : 8,166,232.80 = 2,078,702.40 : x - Step 2: Convert to fraction form
5,442,081.60/8,166,232.80 = 2,078,702.40/x - Step 3: Cross multiply
5,442,081.60x = 8,166,232.80 × 2,078,702.40 - Step 4: Simplify right side
5,442,081.60x = 16,975,167,720,318.72 - Step 5: Solve for x
x = 16,975,167,720,318.72/5,442,081.60 - Step 6: Final answer
x = 3,119,241.67
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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.