Finding the Fourth Proportional to 137,192,538.24, 189,318,750.12 and 81,440,341.92
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Solution
The fourth proportional to 137,192,538.24, 189,318,750.12 and 81,440,341.92 is: 112,383,544.61
Step by Step Solution
- Step 1: Write the proportion equation
137,192,538.24 : 189,318,750.12 = 81,440,341.92 : x - Step 2: Convert to fraction form
137,192,538.24/189,318,750.12 = 81,440,341.92/x - Step 3: Cross multiply
137,192,538.24x = 189,318,750.12 × 81,440,341.92 - Step 4: Simplify right side
137,192,538.24x = 15,418,183,741,639,842 - Step 5: Solve for x
x = 15,418,183,741,639,842/137,192,538.24 - Step 6: Final answer
x = 112,383,544.61
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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.