Finding the Fourth Proportional to 235,379,314.53, 324,815,278.37 and 129,522,838.05
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Solution
The fourth proportional to 235,379,314.53, 324,815,278.37 and 129,522,838.05 is: 178,737,017.65
Step by Step Solution
- Step 1: Write the proportion equation
235,379,314.53 : 324,815,278.37 = 129,522,838.05 : x - Step 2: Convert to fraction form
235,379,314.53/324,815,278.37 = 129,522,838.05/x - Step 3: Cross multiply
235,379,314.53x = 324,815,278.37 × 129,522,838.05 - Step 4: Simplify right side
235,379,314.53x = 42,070,996,695,835,568 - Step 5: Solve for x
x = 42,070,996,695,835,568/235,379,314.53 - Step 6: Final answer
x = 178,737,017.65
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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.