Finding the Fourth Proportional to 112,746,056.81, 155,586,912.13 and 66,339,316.49
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Solution
The fourth proportional to 112,746,056.81, 155,586,912.13 and 66,339,316.49 is: 91,546,699.70
Step by Step Solution
- Step 1: Write the proportion equation
112,746,056.81 : 155,586,912.13 = 66,339,316.49 : x - Step 2: Convert to fraction form
112,746,056.81/155,586,912.13 = 66,339,316.49/x - Step 3: Cross multiply
112,746,056.81x = 155,586,912.13 × 66,339,316.49 - Step 4: Simplify right side
112,746,056.81x = 10,321,529,405,717,008 - Step 5: Solve for x
x = 10,321,529,405,717,008/112,746,056.81 - Step 6: Final answer
x = 91,546,699.70
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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.