Finding the Fourth Proportional to 394,584,821.80, 591,877,232.70 and 103,451,381.80
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Solution
The fourth proportional to 394,584,821.80, 591,877,232.70 and 103,451,381.80 is: 155,177,072.70
Step by Step Solution
- Step 1: Write the proportion equation
394,584,821.80 : 591,877,232.70 = 103,451,381.80 : x - Step 2: Convert to fraction form
394,584,821.80/591,877,232.70 = 103,451,381.80/x - Step 3: Cross multiply
394,584,821.80x = 591,877,232.70 × 103,451,381.80 - Step 4: Simplify right side
394,584,821.80x = 61,230,517,578,775,152 - Step 5: Solve for x
x = 61,230,517,578,775,152/394,584,821.80 - Step 6: Final answer
x = 155,177,072.70
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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.