Finding the Fourth Proportional to 12,215,920.12, 18,319,811.14 and 4,927,497.44
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Solution
The fourth proportional to 12,215,920.12, 18,319,811.14 and 4,927,497.44 is: 7,389,604.84
Step by Step Solution
- Step 1: Write the proportion equation
12,215,920.12 : 18,319,811.14 = 4,927,497.44 : x - Step 2: Convert to fraction form
12,215,920.12/18,319,811.14 = 4,927,497.44/x - Step 3: Cross multiply
12,215,920.12x = 18,319,811.14 × 4,927,497.44 - Step 4: Simplify right side
12,215,920.12x = 90,270,822,493,633.48 - Step 5: Solve for x
x = 90,270,822,493,633.48/12,215,920.12 - Step 6: Final answer
x = 7,389,604.84
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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.