Finding the Fourth Proportional to 18,698,087.40, 28,040,132.70 and 6,562,861.80
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Solution
The fourth proportional to 18,698,087.40, 28,040,132.70 and 6,562,861.80 is: 9,841,836.32
Step by Step Solution
- Step 1: Write the proportion equation
18,698,087.40 : 28,040,132.70 = 6,562,861.80 : x - Step 2: Convert to fraction form
18,698,087.40/28,040,132.70 = 6,562,861.80/x - Step 3: Cross multiply
18,698,087.40x = 28,040,132.70 × 6,562,861.80 - Step 4: Simplify right side
18,698,087.40x = 184,023,515,763,760.84 - Step 5: Solve for x
x = 184,023,515,763,760.84/18,698,087.40 - Step 6: Final answer
x = 9,841,836.32
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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.