Finding the Fourth Proportional to 129,224,535.36, 193,794,861.24 and 42,939,784.32
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Solution
The fourth proportional to 129,224,535.36, 193,794,861.24 and 42,939,784.32 is: 64,395,739.72
Step by Step Solution
- Step 1: Write the proportion equation
129,224,535.36 : 193,794,861.24 = 42,939,784.32 : x - Step 2: Convert to fraction form
129,224,535.36/193,794,861.24 = 42,939,784.32/x - Step 3: Cross multiply
129,224,535.36x = 193,794,861.24 × 42,939,784.32 - Step 4: Simplify right side
129,224,535.36x = 8,321,509,543,969,928 - Step 5: Solve for x
x = 8,321,509,543,969,928/129,224,535.36 - Step 6: Final answer
x = 64,395,739.72
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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.