Finding the Fourth Proportional to 11,509,814.88, 15,883,455.92 and 6,353,173.60
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Solution
The fourth proportional to 11,509,814.88, 15,883,455.92 and 6,353,173.60 is: 8,767,330.65
Step by Step Solution
- Step 1: Write the proportion equation
11,509,814.88 : 15,883,455.92 = 6,353,173.60 : x - Step 2: Convert to fraction form
11,509,814.88/15,883,455.92 = 6,353,173.60/x - Step 3: Cross multiply
11,509,814.88x = 15,883,455.92 × 6,353,173.60 - Step 4: Simplify right side
11,509,814.88x = 100,910,352,827,707.70 - Step 5: Solve for x
x = 100,910,352,827,707.70/11,509,814.88 - Step 6: Final answer
x = 8,767,330.65
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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.