Finding the Fourth Proportional to 129,489,033.70, 194,233,550.55 and 129,489,033.70
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Solution
The fourth proportional to 129,489,033.70, 194,233,550.55 and 129,489,033.70 is: 194,233,550.55
Step by Step Solution
- Step 1: Write the proportion equation
129,489,033.70 : 194,233,550.55 = 129,489,033.70 : x - Step 2: Convert to fraction form
129,489,033.70/194,233,550.55 = 129,489,033.70/x - Step 3: Cross multiply
129,489,033.70x = 194,233,550.55 × 129,489,033.70 - Step 4: Simplify right side
129,489,033.70x = 25,151,114,772,839,604 - Step 5: Solve for x
x = 25,151,114,772,839,604/129,489,033.70 - Step 6: Final answer
x = 194,233,550.55
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1.5x scale
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.