Finding the Fourth Proportional to 701,313,769.84, 967,814,136.12 and 388,061,186.80
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Solution
The fourth proportional to 701,313,769.84, 967,814,136.12 and 388,061,186.80 is: 535,525,065.12
Step by Step Solution
- Step 1: Write the proportion equation
701,313,769.84 : 967,814,136.12 = 388,061,186.80 : x - Step 2: Convert to fraction form
701,313,769.84/967,814,136.12 = 388,061,186.80/x - Step 3: Cross multiply
701,313,769.84x = 967,814,136.12 × 388,061,186.80 - Step 4: Simplify right side
701,313,769.84x = 375,571,102,264,543,936 - Step 5: Solve for x
x = 375,571,102,264,543,936/701,313,769.84 - Step 6: Final answer
x = 535,525,065.12
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.