Finding the Fourth Proportional to 1,164,184,350.40, 1,746,519,136.80 and 388,071,121.60
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Solution
The fourth proportional to 1,164,184,350.40, 1,746,519,136.80 and 388,071,121.60 is: 582,187,554.82
Step by Step Solution
- Step 1: Write the proportion equation
1,164,184,350.40 : 1,746,519,136.80 = 388,071,121.60 : x - Step 2: Convert to fraction form
1,164,184,350.40/1,746,519,136.80 = 388,071,121.60/x - Step 3: Cross multiply
1,164,184,350.40x = 1,746,519,136.80 × 388,071,121.60 - Step 4: Simplify right side
1,164,184,350.40x = 677,773,640,313,839,872 - Step 5: Solve for x
x = 677,773,640,313,839,872/1,164,184,350.40 - Step 6: Final answer
x = 582,187,554.82
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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.