Finding the Fourth Proportional to 263,081,920.72, 363,028,453.32 and 157,214,327.08
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Solution
The fourth proportional to 263,081,920.72, 363,028,453.32 and 157,214,327.08 is: 216,941,072.36
Step by Step Solution
- Step 1: Write the proportion equation
263,081,920.72 : 363,028,453.32 = 157,214,327.08 : x - Step 2: Convert to fraction form
263,081,920.72/363,028,453.32 = 157,214,327.08/x - Step 3: Cross multiply
263,081,920.72x = 363,028,453.32 × 157,214,327.08 - Step 4: Simplify right side
263,081,920.72x = 57,073,273,999,596,992 - Step 5: Solve for x
x = 57,073,273,999,596,992/263,081,920.72 - Step 6: Final answer
x = 216,941,072.36
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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.