Finding the Fourth Proportional to 13,887,694.12, 20,832,537.63 and 4,789,657.92
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Solution
The fourth proportional to 13,887,694.12, 20,832,537.63 and 4,789,657.92 is: 7,184,830.54
Step by Step Solution
- Step 1: Write the proportion equation
13,887,694.12 : 20,832,537.63 = 4,789,657.92 : x - Step 2: Convert to fraction form
13,887,694.12/20,832,537.63 = 4,789,657.92/x - Step 3: Cross multiply
13,887,694.12x = 20,832,537.63 × 4,789,657.92 - Step 4: Simplify right side
13,887,694.12x = 99,780,728,818,659.22 - Step 5: Solve for x
x = 99,780,728,818,659.22/13,887,694.12 - Step 6: Final answer
x = 7,184,830.54
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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.