Finding the Fourth Proportional to 7,384,911.76, 11,081,270.43 and 5,239,799.99
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Solution
The fourth proportional to 7,384,911.76, 11,081,270.43 and 5,239,799.99 is: 7,862,469.12
Step by Step Solution
- Step 1: Write the proportion equation
7,384,911.76 : 11,081,270.43 = 5,239,799.99 : x - Step 2: Convert to fraction form
7,384,911.76/11,081,270.43 = 5,239,799.99/x - Step 3: Cross multiply
7,384,911.76x = 11,081,270.43 × 5,239,799.99 - Step 4: Simplify right side
7,384,911.76x = 58,063,640,619,795.45 - Step 5: Solve for x
x = 58,063,640,619,795.45/7,384,911.76 - Step 6: Final answer
x = 7,862,469.12
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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.