Finding the Fourth Proportional to 128,202,920.63, 192,496,487.19 and 110,984,232.23
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Solution
The fourth proportional to 128,202,920.63, 192,496,487.19 and 110,984,232.23 is: 166,642,653.17
Step by Step Solution
- Step 1: Write the proportion equation
128,202,920.63 : 192,496,487.19 = 110,984,232.23 : x - Step 2: Convert to fraction form
128,202,920.63/192,496,487.19 = 110,984,232.23/x - Step 3: Cross multiply
128,202,920.63x = 192,496,487.19 × 110,984,232.23 - Step 4: Simplify right side
128,202,920.63x = 21,364,074,836,791,696 - Step 5: Solve for x
x = 21,364,074,836,791,696/128,202,920.63 - Step 6: Final answer
x = 166,642,653.17
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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.