Finding the Fourth Proportional to 121,315,037.70, 181,972,556.55 and 39,433,757.70
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Solution
The fourth proportional to 121,315,037.70, 181,972,556.55 and 39,433,757.70 is: 59,150,636.55
Step by Step Solution
- Step 1: Write the proportion equation
121,315,037.70 : 181,972,556.55 = 39,433,757.70 : x - Step 2: Convert to fraction form
121,315,037.70/181,972,556.55 = 39,433,757.70/x - Step 3: Cross multiply
121,315,037.70x = 181,972,556.55 × 39,433,757.70 - Step 4: Simplify right side
121,315,037.70x = 7,175,861,703,042,249 - Step 5: Solve for x
x = 7,175,861,703,042,249/121,315,037.70 - Step 6: Final answer
x = 59,150,636.55
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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.