Finding the Fourth Proportional to 17,490,993.70, 26,236,490.55 and 16,782,405.70
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Solution
The fourth proportional to 17,490,993.70, 26,236,490.55 and 16,782,405.70 is: 25,173,608.55
Step by Step Solution
- Step 1: Write the proportion equation
17,490,993.70 : 26,236,490.55 = 16,782,405.70 : x - Step 2: Convert to fraction form
17,490,993.70/26,236,490.55 = 16,782,405.70/x - Step 3: Cross multiply
17,490,993.70x = 26,236,490.55 × 16,782,405.70 - Step 4: Simplify right side
17,490,993.70x = 440,311,428,554,316.12 - Step 5: Solve for x
x = 440,311,428,554,316.12/17,490,993.70 - Step 6: Final answer
x = 25,173,608.55
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.