Finding the Fourth Proportional to 199,691,837.75, 275,569,447.95 and 111,586,559.40
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Solution
The fourth proportional to 199,691,837.75, 275,569,447.95 and 111,586,559.40 is: 153,986,496.99
Step by Step Solution
- Step 1: Write the proportion equation
199,691,837.75 : 275,569,447.95 = 111,586,559.40 : x - Step 2: Convert to fraction form
199,691,837.75/275,569,447.95 = 111,586,559.40/x - Step 3: Cross multiply
199,691,837.75x = 275,569,447.95 × 111,586,559.40 - Step 4: Simplify right side
199,691,837.75x = 30,749,846,572,497,884 - Step 5: Solve for x
x = 30,749,846,572,497,884/199,691,837.75 - Step 6: Final answer
x = 153,986,496.99
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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.