Finding the Fourth Proportional to 306,021,552.24, 422,324,682.12 and 172,101,608.40
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Solution
The fourth proportional to 306,021,552.24, 422,324,682.12 and 172,101,608.40 is: 237,508,621.62
Step by Step Solution
- Step 1: Write the proportion equation
306,021,552.24 : 422,324,682.12 = 172,101,608.40 : x - Step 2: Convert to fraction form
306,021,552.24/422,324,682.12 = 172,101,608.40/x - Step 3: Cross multiply
306,021,552.24x = 422,324,682.12 × 172,101,608.40 - Step 4: Simplify right side
306,021,552.24x = 72,682,757,059,870,720 - Step 5: Solve for x
x = 72,682,757,059,870,720/306,021,552.24 - Step 6: Final answer
x = 237,508,621.62
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1.5x scale
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.