Finding the Fourth Proportional to 381,622,230.12, 572,524,674.30 and 122,861,638.92
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Solution
The fourth proportional to 381,622,230.12, 572,524,674.30 and 122,861,638.92 is: 184,321,861.40
Step by Step Solution
- Step 1: Write the proportion equation
381,622,230.12 : 572,524,674.30 = 122,861,638.92 : x - Step 2: Convert to fraction form
381,622,230.12/572,524,674.30 = 122,861,638.92/x - Step 3: Cross multiply
381,622,230.12x = 572,524,674.30 × 122,861,638.92 - Step 4: Simplify right side
381,622,230.12x = 70,341,319,806,637,200 - Step 5: Solve for x
x = 70,341,319,806,637,200/381,622,230.12 - Step 6: Final answer
x = 184,321,861.40
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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.