Finding the Fourth Proportional to 76,831,687.99, 115,247,728.82 and 31,393,482.49
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Solution
The fourth proportional to 76,831,687.99, 115,247,728.82 and 31,393,482.49 is: 47,090,304.16
Step by Step Solution
- Step 1: Write the proportion equation
76,831,687.99 : 115,247,728.82 = 31,393,482.49 : x - Step 2: Convert to fraction form
76,831,687.99/115,247,728.82 = 31,393,482.49/x - Step 3: Cross multiply
76,831,687.99x = 115,247,728.82 × 31,393,482.49 - Step 4: Simplify right side
76,831,687.99x = 3,618,027,556,722,938 - Step 5: Solve for x
x = 3,618,027,556,722,938/76,831,687.99 - Step 6: Final answer
x = 47,090,304.16
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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.