Finding the Fourth Proportional to 8,678,245.60, 11,977,304.52 and 5,539,864.96
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Solution
The fourth proportional to 8,678,245.60, 11,977,304.52 and 5,539,864.96 is: 7,645,859.85
Step by Step Solution
- Step 1: Write the proportion equation
8,678,245.60 : 11,977,304.52 = 5,539,864.96 : x - Step 2: Convert to fraction form
8,678,245.60/11,977,304.52 = 5,539,864.96/x - Step 3: Cross multiply
8,678,245.60x = 11,977,304.52 × 5,539,864.96 - Step 4: Simplify right side
8,678,245.60x = 66,352,649,625,597.62 - Step 5: Solve for x
x = 66,352,649,625,597.62/8,678,245.60 - Step 6: Final answer
x = 7,645,859.85
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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.