Finding the Fourth Proportional to 79,728,163.70, 119,592,245.55 and 43,353,979.70
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Solution
The fourth proportional to 79,728,163.70, 119,592,245.55 and 43,353,979.70 is: 65,030,969.55
Step by Step Solution
- Step 1: Write the proportion equation
79,728,163.70 : 119,592,245.55 = 43,353,979.70 : x - Step 2: Convert to fraction form
79,728,163.70/119,592,245.55 = 43,353,979.70/x - Step 3: Cross multiply
79,728,163.70x = 119,592,245.55 × 43,353,979.70 - Step 4: Simplify right side
79,728,163.70x = 5,184,799,785,852,116 - Step 5: Solve for x
x = 5,184,799,785,852,116/79,728,163.70 - Step 6: Final answer
x = 65,030,969.55
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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.