Finding the Fourth Proportional to 8,354,458.08, 12,521,988.90 and 3,163,768.20
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Solution
The fourth proportional to 8,354,458.08, 12,521,988.90 and 3,163,768.20 is: 4,741,979.66
Step by Step Solution
- Step 1: Write the proportion equation
8,354,458.08 : 12,521,988.90 = 3,163,768.20 : x - Step 2: Convert to fraction form
8,354,458.08/12,521,988.90 = 3,163,768.20/x - Step 3: Cross multiply
8,354,458.08x = 12,521,988.90 × 3,163,768.20 - Step 4: Simplify right side
8,354,458.08x = 39,616,670,282,572.98 - Step 5: Solve for x
x = 39,616,670,282,572.98/8,354,458.08 - Step 6: Final answer
x = 4,741,979.66
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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.