Finding the Fourth Proportional to 215,382,705.72, 323,080,630.52 and 84,219,742.68
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Solution
The fourth proportional to 215,382,705.72, 323,080,630.52 and 84,219,742.68 is: 126,332,183.80
Step by Step Solution
- Step 1: Write the proportion equation
215,382,705.72 : 323,080,630.52 = 84,219,742.68 : x - Step 2: Convert to fraction form
215,382,705.72/323,080,630.52 = 84,219,742.68/x - Step 3: Cross multiply
215,382,705.72x = 323,080,630.52 × 84,219,742.68 - Step 4: Simplify right side
215,382,705.72x = 27,209,767,567,286,556 - Step 5: Solve for x
x = 27,209,767,567,286,556/215,382,705.72 - Step 6: Final answer
x = 126,332,183.80
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.