Finding the Fourth Proportional to 209,458,630.53, 289,052,908.92 and 121,403,703.96
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Solution
The fourth proportional to 209,458,630.53, 289,052,908.92 and 121,403,703.96 is: 167,537,110.76
Step by Step Solution
- Step 1: Write the proportion equation
209,458,630.53 : 289,052,908.92 = 121,403,703.96 : x - Step 2: Convert to fraction form
209,458,630.53/289,052,908.92 = 121,403,703.96/x - Step 3: Cross multiply
209,458,630.53x = 289,052,908.92 × 121,403,703.96 - Step 4: Simplify right side
209,458,630.53x = 35,092,093,783,300,524 - Step 5: Solve for x
x = 35,092,093,783,300,524/209,458,630.53 - Step 6: Final answer
x = 167,537,110.76
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.