Finding the Fourth Proportional to 11,190,673.20, 16,786,009.80 and 10,257,553.20
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Solution
The fourth proportional to 11,190,673.20, 16,786,009.80 and 10,257,553.20 is: 15,386,329.80
Step by Step Solution
- Step 1: Write the proportion equation
11,190,673.20 : 16,786,009.80 = 10,257,553.20 : x - Step 2: Convert to fraction form
11,190,673.20/16,786,009.80 = 10,257,553.20/x - Step 3: Cross multiply
11,190,673.20x = 16,786,009.80 × 10,257,553.20 - Step 4: Simplify right side
11,190,673.20x = 172,183,388,539,221.34 - Step 5: Solve for x
x = 172,183,388,539,221.34/11,190,673.20 - Step 6: Final answer
x = 15,386,329.80
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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.