Finding the Fourth Proportional to 8,377,021.40, 12,558,335.49 and 2,911,406.21
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Solution
The fourth proportional to 8,377,021.40, 12,558,335.49 and 2,911,406.21 is: 4,364,608.15
Step by Step Solution
- Step 1: Write the proportion equation
8,377,021.40 : 12,558,335.49 = 2,911,406.21 : x - Step 2: Convert to fraction form
8,377,021.40/12,558,335.49 = 2,911,406.21/x - Step 3: Cross multiply
8,377,021.40x = 12,558,335.49 × 2,911,406.21 - Step 4: Simplify right side
8,377,021.40x = 36,562,415,870,057.72 - Step 5: Solve for x
x = 36,562,415,870,057.72/8,377,021.40 - Step 6: Final answer
x = 4,364,608.15
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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.