Finding the Fourth Proportional to 208,212,378.09, 310,457,093.22 and 202,491,872.46
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Solution
The fourth proportional to 208,212,378.09, 310,457,093.22 and 202,491,872.46 is: 301,927,477.62
Step by Step Solution
- Step 1: Write the proportion equation
208,212,378.09 : 310,457,093.22 = 202,491,872.46 : x - Step 2: Convert to fraction form
208,212,378.09/310,457,093.22 = 202,491,872.46/x - Step 3: Cross multiply
208,212,378.09x = 310,457,093.22 × 202,491,872.46 - Step 4: Simplify right side
208,212,378.09x = 62,865,038,124,606,576 - Step 5: Solve for x
x = 62,865,038,124,606,576/208,212,378.09 - Step 6: Final answer
x = 301,927,477.62
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.