Finding the Fourth Proportional to 21,279,790, 29,366,296.68 and 12,113,022.16
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Solution
The fourth proportional to 21,279,790, 29,366,296.68 and 12,113,022.16 is: 16,716,076.73
Step by Step Solution
- Step 1: Write the proportion equation
21,279,790 : 29,366,296.68 = 12,113,022.16 : x - Step 2: Convert to fraction form
21,279,790/29,366,296.68 = 12,113,022.16/x - Step 3: Cross multiply
21,279,790x = 29,366,296.68 × 12,113,022.16 - Step 4: Simplify right side
21,279,790x = 355,714,602,441,974.44 - Step 5: Solve for x
x = 355,714,602,441,974.44/21,279,790 - Step 6: Final answer
x = 16,716,076.73
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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.