Finding the Fourth Proportional to 235,002,146.23, 324,310,261.68 and 129,153,640.87
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Solution
The fourth proportional to 235,002,146.23, 324,310,261.68 and 129,153,640.87 is: 178,236,036.30
Step by Step Solution
- Step 1: Write the proportion equation
235,002,146.23 : 324,310,261.68 = 129,153,640.87 : x - Step 2: Convert to fraction form
235,002,146.23/324,310,261.68 = 129,153,640.87/x - Step 3: Cross multiply
235,002,146.23x = 324,310,261.68 × 129,153,640.87 - Step 4: Simplify right side
235,002,146.23x = 41,885,851,066,828,680 - Step 5: Solve for x
x = 41,885,851,066,828,680/235,002,146.23 - Step 6: Final answer
x = 178,236,036.30
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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.