Finding the Fourth Proportional to 282,394,464.16, 389,661,936.24 and 158,611,430.56
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Solution
The fourth proportional to 282,394,464.16, 389,661,936.24 and 158,611,430.56 is: 218,859,945.88
Step by Step Solution
- Step 1: Write the proportion equation
282,394,464.16 : 389,661,936.24 = 158,611,430.56 : x - Step 2: Convert to fraction form
282,394,464.16/389,661,936.24 = 158,611,430.56/x - Step 3: Cross multiply
282,394,464.16x = 389,661,936.24 × 158,611,430.56 - Step 4: Simplify right side
282,394,464.16x = 61,804,837,141,805,912 - Step 5: Solve for x
x = 61,804,837,141,805,912/282,394,464.16 - Step 6: Final answer
x = 218,859,945.88
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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.