Finding the Fourth Proportional to 2,166,232.34, 2,989,446.24 and 1,186,212.53
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Solution
The fourth proportional to 2,166,232.34, 2,989,446.24 and 1,186,212.53 is: 1,636,998.27
Step by Step Solution
- Step 1: Write the proportion equation
2,166,232.34 : 2,989,446.24 = 1,186,212.53 : x - Step 2: Convert to fraction form
2,166,232.34/2,989,446.24 = 1,186,212.53/x - Step 3: Cross multiply
2,166,232.34x = 2,989,446.24 × 1,186,212.53 - Step 4: Simplify right side
2,166,232.34x = 3,546,118,599,571.30 - Step 5: Solve for x
x = 3,546,118,599,571.30/2,166,232.34 - Step 6: Final answer
x = 1,636,998.27
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1.5x scale
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.