Finding the Fourth Proportional to 394,755,178,809.99, 544,761,733,598 and 221,141,540,353.99
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Solution
The fourth proportional to 394,755,178,809.99, 544,761,733,598 and 221,141,540,353.99 is: 305,175,094,236.72
Step by Step Solution
- Step 1: Write the proportion equation
394,755,178,809.99 : 544,761,733,598 = 221,141,540,353.99 : x - Step 2: Convert to fraction form
394,755,178,809.99/544,761,733,598 = 221,141,540,353.99/x - Step 3: Cross multiply
394,755,178,809.99x = 544,761,733,598 × 221,141,540,353.99 - Step 4: Simplify right side
394,755,178,809.99x = 120,469,448,893,771,661,967,360 - Step 5: Solve for x
x = 120,469,448,893,771,661,967,360/394,755,178,809.99 - Step 6: Final answer
x = 305,175,094,236.72
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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.