Finding the Fourth Proportional to 129,903,505.81, 194,884,342.18 and 43,639,559.82
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Solution
The fourth proportional to 129,903,505.81, 194,884,342.18 and 43,639,559.82 is: 65,469,109.98
Step by Step Solution
- Step 1: Write the proportion equation
129,903,505.81 : 194,884,342.18 = 43,639,559.82 : x - Step 2: Convert to fraction form
129,903,505.81/194,884,342.18 = 43,639,559.82/x - Step 3: Cross multiply
129,903,505.81x = 194,884,342.18 × 43,639,559.82 - Step 4: Simplify right side
129,903,505.81x = 8,504,666,908,436,361 - Step 5: Solve for x
x = 8,504,666,908,436,361/129,903,505.81 - Step 6: Final answer
x = 65,469,109.98
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.