Finding the Fourth Proportional to 18,372,212.10, 27,558,318.15 and 11,989,671.30
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Solution
The fourth proportional to 18,372,212.10, 27,558,318.15 and 11,989,671.30 is: 17,984,506.95
Step by Step Solution
- Step 1: Write the proportion equation
18,372,212.10 : 27,558,318.15 = 11,989,671.30 : x - Step 2: Convert to fraction form
18,372,212.10/27,558,318.15 = 11,989,671.30/x - Step 3: Cross multiply
18,372,212.10x = 27,558,318.15 × 11,989,671.30 - Step 4: Simplify right side
18,372,212.10x = 330,415,176,199,324.12 - Step 5: Solve for x
x = 330,415,176,199,324.12/18,372,212.10 - Step 6: Final answer
x = 17,984,506.95
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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.