Finding the Fourth Proportional to 154,245,472.43, 212,858,728.84 and 88,167,389.49
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Solution
The fourth proportional to 154,245,472.43, 212,858,728.84 and 88,167,389.49 is: 121,670,984.29
Step by Step Solution
- Step 1: Write the proportion equation
154,245,472.43 : 212,858,728.84 = 88,167,389.49 : x - Step 2: Convert to fraction form
154,245,472.43/212,858,728.84 = 88,167,389.49/x - Step 3: Cross multiply
154,245,472.43x = 212,858,728.84 × 88,167,389.49 - Step 4: Simplify right side
154,245,472.43x = 18,767,198,452,092,784 - Step 5: Solve for x
x = 18,767,198,452,092,784/154,245,472.43 - Step 6: Final answer
x = 121,670,984.29
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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.