Finding the Fourth Proportional to 485,664,448.08, 670,208,568.48 and 273,971,736.48
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Solution
The fourth proportional to 485,664,448.08, 670,208,568.48 and 273,971,736.48 is: 378,076,274.75
Step by Step Solution
- Step 1: Write the proportion equation
485,664,448.08 : 670,208,568.48 = 273,971,736.48 : x - Step 2: Convert to fraction form
485,664,448.08/670,208,568.48 = 273,971,736.48/x - Step 3: Cross multiply
485,664,448.08x = 670,208,568.48 × 273,971,736.48 - Step 4: Simplify right side
485,664,448.08x = 183,618,205,310,240,608 - Step 5: Solve for x
x = 183,618,205,310,240,608/485,664,448.08 - Step 6: Final answer
x = 378,076,274.75
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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.