Finding the Fourth Proportional to 10,691,489.70, 14,739,982.70 and 8,493,645.02
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Solution
The fourth proportional to 10,691,489.70, 14,739,982.70 and 8,493,645.02 is: 11,709,891.14
Step by Step Solution
- Step 1: Write the proportion equation
10,691,489.70 : 14,739,982.70 = 8,493,645.02 : x - Step 2: Convert to fraction form
10,691,489.70/14,739,982.70 = 8,493,645.02/x - Step 3: Cross multiply
10,691,489.70x = 14,739,982.70 × 8,493,645.02 - Step 4: Simplify right side
10,691,489.70x = 125,196,180,538,573.03 - Step 5: Solve for x
x = 125,196,180,538,573.03/10,691,489.70 - Step 6: Final answer
x = 11,709,891.14
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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.