Finding the Fourth Proportional to 3,853,858.60, 5,318,651.46 and 2,135,518.12
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Solution
The fourth proportional to 3,853,858.60, 5,318,651.46 and 2,135,518.12 is: 2,947,195.98
Step by Step Solution
- Step 1: Write the proportion equation
3,853,858.60 : 5,318,651.46 = 2,135,518.12 : x - Step 2: Convert to fraction form
3,853,858.60/5,318,651.46 = 2,135,518.12/x - Step 3: Cross multiply
3,853,858.60x = 5,318,651.46 × 2,135,518.12 - Step 4: Simplify right side
3,853,858.60x = 11,358,076,566,794.46 - Step 5: Solve for x
x = 11,358,076,566,794.46/3,853,858.60 - Step 6: Final answer
x = 2,947,195.98
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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.