Finding the Fourth Proportional to 201,527,527.05, 278,077,991.90 and 113,416,269.98
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Solution
The fourth proportional to 201,527,527.05, 278,077,991.90 and 113,416,269.98 is: 156,497,571.64
Step by Step Solution
- Step 1: Write the proportion equation
201,527,527.05 : 278,077,991.90 = 113,416,269.98 : x - Step 2: Convert to fraction form
201,527,527.05/278,077,991.90 = 113,416,269.98/x - Step 3: Cross multiply
201,527,527.05x = 278,077,991.90 × 113,416,269.98 - Step 4: Simplify right side
201,527,527.05x = 31,538,568,602,869,180 - Step 5: Solve for x
x = 31,538,568,602,869,180/201,527,527.05 - Step 6: Final answer
x = 156,497,571.64
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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.