Finding the Fourth Proportional to 129,349,122.60, 194,050,640.70 and 43,114,319.40
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Solution
The fourth proportional to 129,349,122.60, 194,050,640.70 and 43,114,319.40 is: 64,680,464.27
Step by Step Solution
- Step 1: Write the proportion equation
129,349,122.60 : 194,050,640.70 = 43,114,319.40 : x - Step 2: Convert to fraction form
129,349,122.60/194,050,640.70 = 43,114,319.40/x - Step 3: Cross multiply
129,349,122.60x = 194,050,640.70 × 43,114,319.40 - Step 4: Simplify right side
129,349,122.60x = 8,366,361,302,914,439 - Step 5: Solve for x
x = 8,366,361,302,914,439/129,349,122.60 - Step 6: Final answer
x = 64,680,464.27
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.