Finding the Fourth Proportional to 17,138,716.75, 23,651,864.28 and 9,403,757.02
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Solution
The fourth proportional to 17,138,716.75, 23,651,864.28 and 9,403,757.02 is: 12,977,423.46
Step by Step Solution
- Step 1: Write the proportion equation
17,138,716.75 : 23,651,864.28 = 9,403,757.02 : x - Step 2: Convert to fraction form
17,138,716.75/23,651,864.28 = 9,403,757.02/x - Step 3: Cross multiply
17,138,716.75x = 23,651,864.28 × 9,403,757.02 - Step 4: Simplify right side
17,138,716.75x = 222,416,384,759,137.25 - Step 5: Solve for x
x = 222,416,384,759,137.25/17,138,716.75 - Step 6: Final answer
x = 12,977,423.46
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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.