Finding the Fourth Proportional to 32,900,391.09, 45,403,958.79 and 18,216,057.69
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Solution
The fourth proportional to 32,900,391.09, 45,403,958.79 and 18,216,057.69 is: 25,138,945.32
Step by Step Solution
- Step 1: Write the proportion equation
32,900,391.09 : 45,403,958.79 = 18,216,057.69 : x - Step 2: Convert to fraction form
32,900,391.09/45,403,958.79 = 18,216,057.69/x - Step 3: Cross multiply
32,900,391.09x = 45,403,958.79 × 18,216,057.69 - Step 4: Simplify right side
32,900,391.09x = 827,081,132,673,022.62 - Step 5: Solve for x
x = 827,081,132,673,022.62/32,900,391.09 - Step 6: Final answer
x = 25,138,945.32
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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.