Finding the Fourth Proportional to 19,991,063.34, 27,589,516.61 and 12,148,765.65
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Solution
The fourth proportional to 19,991,063.34, 27,589,516.61 and 12,148,765.65 is: 16,766,420.37
Step by Step Solution
- Step 1: Write the proportion equation
19,991,063.34 : 27,589,516.61 = 12,148,765.65 : x - Step 2: Convert to fraction form
19,991,063.34/27,589,516.61 = 12,148,765.65/x - Step 3: Cross multiply
19,991,063.34x = 27,589,516.61 × 12,148,765.65 - Step 4: Simplify right side
19,991,063.34x = 335,178,571,630,928.62 - Step 5: Solve for x
x = 335,178,571,630,928.62/19,991,063.34 - Step 6: Final answer
x = 16,766,420.37
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.