Finding the Fourth Proportional to 18,968,626.11, 28,453,013.88 and 4,591,670.82
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Solution
The fourth proportional to 18,968,626.11, 28,453,013.88 and 4,591,670.82 is: 6,887,524.32
Step by Step Solution
- Step 1: Write the proportion equation
18,968,626.11 : 28,453,013.88 = 4,591,670.82 : x - Step 2: Convert to fraction form
18,968,626.11/28,453,013.88 = 4,591,670.82/x - Step 3: Cross multiply
18,968,626.11x = 28,453,013.88 × 4,591,670.82 - Step 4: Simplify right side
18,968,626.11x = 130,646,873,573,850.98 - Step 5: Solve for x
x = 130,646,873,573,850.98/18,968,626.11 - Step 6: Final answer
x = 6,887,524.32
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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.