Finding the Fourth Proportional to 7,980,939.12, 11,971,408.84 and 1,915,670.85
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Solution
The fourth proportional to 7,980,939.12, 11,971,408.84 and 1,915,670.85 is: 2,873,506.31
Step by Step Solution
- Step 1: Write the proportion equation
7,980,939.12 : 11,971,408.84 = 1,915,670.85 : x - Step 2: Convert to fraction form
7,980,939.12/11,971,408.84 = 1,915,670.85/x - Step 3: Cross multiply
7,980,939.12x = 11,971,408.84 × 1,915,670.85 - Step 4: Simplify right side
7,980,939.12x = 22,933,278,883,574.09 - Step 5: Solve for x
x = 22,933,278,883,574.09/7,980,939.12 - Step 6: Final answer
x = 2,873,506.31
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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.