Finding the Fourth Proportional to 786,954,059.67, 1,180,839,623.13 and 320,957,361.63
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Solution
The fourth proportional to 786,954,059.67, 1,180,839,623.13 and 320,957,361.63 is: 481,602,661.92
Step by Step Solution
- Step 1: Write the proportion equation
786,954,059.67 : 1,180,839,623.13 = 320,957,361.63 : x - Step 2: Convert to fraction form
786,954,059.67/1,180,839,623.13 = 320,957,361.63/x - Step 3: Cross multiply
786,954,059.67x = 1,180,839,623.13 × 320,957,361.63 - Step 4: Simplify right side
786,954,059.67x = 378,999,169,947,968,384 - Step 5: Solve for x
x = 378,999,169,947,968,384/786,954,059.67 - Step 6: Final answer
x = 481,602,661.92
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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.