Finding the Fourth Proportional to 209,458,622.66, 289,052,898.03 and 121,403,696.13
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Solution
The fourth proportional to 209,458,622.66, 289,052,898.03 and 121,403,696.13 is: 167,537,099.94
Step by Step Solution
- Step 1: Write the proportion equation
209,458,622.66 : 289,052,898.03 = 121,403,696.13 : x - Step 2: Convert to fraction form
209,458,622.66/289,052,898.03 = 121,403,696.13/x - Step 3: Cross multiply
209,458,622.66x = 289,052,898.03 × 121,403,696.13 - Step 4: Simplify right side
209,458,622.66x = 35,092,090,197,929,992 - Step 5: Solve for x
x = 35,092,090,197,929,992/209,458,622.66 - Step 6: Final answer
x = 167,537,099.94
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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.