Finding the Fourth Proportional to 18,091,986.20, 27,115,745.97 and 8,363,439.71
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Solution
The fourth proportional to 18,091,986.20, 27,115,745.97 and 8,363,439.71 is: 12,534,881.70
Step by Step Solution
- Step 1: Write the proportion equation
18,091,986.20 : 27,115,745.97 = 8,363,439.71 : x - Step 2: Convert to fraction form
18,091,986.20/27,115,745.97 = 8,363,439.71/x - Step 3: Cross multiply
18,091,986.20x = 27,115,745.97 × 8,363,439.71 - Step 4: Simplify right side
18,091,986.20x = 226,780,906,755,155.56 - Step 5: Solve for x
x = 226,780,906,755,155.56/18,091,986.20 - Step 6: Final answer
x = 12,534,881.70
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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.