Finding the Fourth Proportional to 129,366,125.80, 194,049,188.70 and 129,366,125.80
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Solution
The fourth proportional to 129,366,125.80, 194,049,188.70 and 129,366,125.80 is: 194,049,188.70
Step by Step Solution
- Step 1: Write the proportion equation
129,366,125.80 : 194,049,188.70 = 129,366,125.80 : x - Step 2: Convert to fraction form
129,366,125.80/194,049,188.70 = 129,366,125.80/x - Step 3: Cross multiply
129,366,125.80x = 194,049,188.70 × 129,366,125.80 - Step 4: Simplify right side
129,366,125.80x = 25,103,391,756,752,136 - Step 5: Solve for x
x = 25,103,391,756,752,136/129,366,125.80 - Step 6: Final answer
x = 194,049,188.70
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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.