Finding the Fourth Proportional to 317,673,194.09, 438,253,021.52 and 198,388,698.19
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Solution
The fourth proportional to 317,673,194.09, 438,253,021.52 and 198,388,698.19 is: 273,691,479.27
Step by Step Solution
- Step 1: Write the proportion equation
317,673,194.09 : 438,253,021.52 = 198,388,698.19 : x - Step 2: Convert to fraction form
317,673,194.09/438,253,021.52 = 198,388,698.19/x - Step 3: Cross multiply
317,673,194.09x = 438,253,021.52 × 198,388,698.19 - Step 4: Simplify right side
317,673,194.09x = 86,944,446,414,003,648 - Step 5: Solve for x
x = 86,944,446,414,003,648/317,673,194.09 - Step 6: Final answer
x = 273,691,479.27
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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.