Finding the Fourth Proportional to 18,453,603.60, 27,680,405.40 and 5,674,087.80
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Solution
The fourth proportional to 18,453,603.60, 27,680,405.40 and 5,674,087.80 is: 8,511,131.70
Step by Step Solution
- Step 1: Write the proportion equation
18,453,603.60 : 27,680,405.40 = 5,674,087.80 : x - Step 2: Convert to fraction form
18,453,603.60/27,680,405.40 = 5,674,087.80/x - Step 3: Cross multiply
18,453,603.60x = 27,680,405.40 × 5,674,087.80 - Step 4: Simplify right side
18,453,603.60x = 157,061,050,579,194.09 - Step 5: Solve for x
x = 157,061,050,579,194.09/18,453,603.60 - Step 6: Final answer
x = 8,511,131.70
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1.5x scale
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.