Finding the Fourth Proportional to 136,944,888.90, 188,986,230.21 and 74,222,990.10
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Solution
The fourth proportional to 136,944,888.90, 188,986,230.21 and 74,222,990.10 is: 102,428,963.99
Step by Step Solution
- Step 1: Write the proportion equation
136,944,888.90 : 188,986,230.21 = 74,222,990.10 : x - Step 2: Convert to fraction form
136,944,888.90/188,986,230.21 = 74,222,990.10/x - Step 3: Cross multiply
136,944,888.90x = 188,986,230.21 × 74,222,990.10 - Step 4: Simplify right side
136,944,888.90x = 14,027,123,093,913,150 - Step 5: Solve for x
x = 14,027,123,093,913,150/136,944,888.90 - Step 6: Final answer
x = 102,428,963.99
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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.