Finding the Fourth Proportional to 373,628,228.76, 515,638,826.58 and 208,647,670.68
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Solution
The fourth proportional to 373,628,228.76, 515,638,826.58 and 208,647,670.68 is: 287,951,583.41
Step by Step Solution
- Step 1: Write the proportion equation
373,628,228.76 : 515,638,826.58 = 208,647,670.68 : x - Step 2: Convert to fraction form
373,628,228.76/515,638,826.58 = 208,647,670.68/x - Step 3: Cross multiply
373,628,228.76x = 515,638,826.58 × 208,647,670.68 - Step 4: Simplify right side
373,628,228.76x = 107,586,840,078,085,472 - Step 5: Solve for x
x = 107,586,840,078,085,472/373,628,228.76 - Step 6: Final answer
x = 287,951,583.41
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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.