Finding the Fourth Proportional to 8,213,468.91, 12,319,262.06 and 2,148,785.88
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Solution
The fourth proportional to 8,213,468.91, 12,319,262.06 and 2,148,785.88 is: 3,222,932.56
Step by Step Solution
- Step 1: Write the proportion equation
8,213,468.91 : 12,319,262.06 = 2,148,785.88 : x - Step 2: Convert to fraction form
8,213,468.91/12,319,262.06 = 2,148,785.88/x - Step 3: Cross multiply
8,213,468.91x = 12,319,262.06 × 2,148,785.88 - Step 4: Simplify right side
8,213,468.91x = 26,471,456,355,803.78 - Step 5: Solve for x
x = 26,471,456,355,803.78/8,213,468.91 - Step 6: Final answer
x = 3,222,932.56
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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.