Finding the Fourth Proportional to 13,153,049.92, 19,590,879.68 and 12,562,901.44
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Solution
The fourth proportional to 13,153,049.92, 19,590,879.68 and 12,562,901.44 is: 18,711,879.91
Step by Step Solution
- Step 1: Write the proportion equation
13,153,049.92 : 19,590,879.68 = 12,562,901.44 : x - Step 2: Convert to fraction form
13,153,049.92/19,590,879.68 = 12,562,901.44/x - Step 3: Cross multiply
13,153,049.92x = 19,590,879.68 × 12,562,901.44 - Step 4: Simplify right side
13,153,049.92x = 246,118,290,542,738.72 - Step 5: Solve for x
x = 246,118,290,542,738.72/13,153,049.92 - Step 6: Final answer
x = 18,711,879.91
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.