Finding the Fourth Proportional to 281,967,379.44, 422,953,986.96 and 85,232,426.44
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Solution
The fourth proportional to 281,967,379.44, 422,953,986.96 and 85,232,426.44 is: 127,849,521.65
Step by Step Solution
- Step 1: Write the proportion equation
281,967,379.44 : 422,953,986.96 = 85,232,426.44 : x - Step 2: Convert to fraction form
281,967,379.44/422,953,986.96 = 85,232,426.44/x - Step 3: Cross multiply
281,967,379.44x = 422,953,986.96 × 85,232,426.44 - Step 4: Simplify right side
281,967,379.44x = 36,049,394,581,072,920 - Step 5: Solve for x
x = 36,049,394,581,072,920/281,967,379.44 - Step 6: Final answer
x = 127,849,521.65
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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.