Finding the Fourth Proportional to 2,193,123.99, 3,023,534.75 and 1,538,861.07
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Solution
The fourth proportional to 2,193,123.99, 3,023,534.75 and 1,538,861.07 is: 2,121,539.84
Step by Step Solution
- Step 1: Write the proportion equation
2,193,123.99 : 3,023,534.75 = 1,538,861.07 : x - Step 2: Convert to fraction form
2,193,123.99/3,023,534.75 = 1,538,861.07/x - Step 3: Cross multiply
2,193,123.99x = 3,023,534.75 × 1,538,861.07 - Step 4: Simplify right side
2,193,123.99x = 4,652,799,912,872.88 - Step 5: Solve for x
x = 4,652,799,912,872.88/2,193,123.99 - Step 6: Final answer
x = 2,121,539.84
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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.