Finding the Fourth Proportional to 13,468,640.64, 18,586,723.35 and 7,273,686.75
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Solution
The fourth proportional to 13,468,640.64, 18,586,723.35 and 7,273,686.75 is: 10,037,687.32
Step by Step Solution
- Step 1: Write the proportion equation
13,468,640.64 : 18,586,723.35 = 7,273,686.75 : x - Step 2: Convert to fraction form
13,468,640.64/18,586,723.35 = 7,273,686.75/x - Step 3: Cross multiply
13,468,640.64x = 18,586,723.35 × 7,273,686.75 - Step 4: Simplify right side
13,468,640.64x = 135,194,003,356,810.62 - Step 5: Solve for x
x = 135,194,003,356,810.62/13,468,640.64 - Step 6: Final answer
x = 10,037,687.32
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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.