Finding the Fourth Proportional to 198,785,402.74, 274,320,580.17 and 116,293,162.42
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Solution
The fourth proportional to 198,785,402.74, 274,320,580.17 and 116,293,162.42 is: 160,482,647.85
Step by Step Solution
- Step 1: Write the proportion equation
198,785,402.74 : 274,320,580.17 = 116,293,162.42 : x - Step 2: Convert to fraction form
198,785,402.74/274,320,580.17 = 116,293,162.42/x - Step 3: Cross multiply
198,785,402.74x = 274,320,580.17 × 116,293,162.42 - Step 4: Simplify right side
198,785,402.74x = 31,901,607,784,858,444 - Step 5: Solve for x
x = 31,901,607,784,858,444/198,785,402.74 - Step 6: Final answer
x = 160,482,647.85
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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.