Finding the Fourth Proportional to 76,831,687.12, 115,247,727.51 and 31,393,481.62
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Solution
The fourth proportional to 76,831,687.12, 115,247,727.51 and 31,393,481.62 is: 47,090,302.85
Step by Step Solution
- Step 1: Write the proportion equation
76,831,687.12 : 115,247,727.51 = 31,393,481.62 : x - Step 2: Convert to fraction form
76,831,687.12/115,247,727.51 = 31,393,481.62/x - Step 3: Cross multiply
76,831,687.12x = 115,247,727.51 × 31,393,481.62 - Step 4: Simplify right side
76,831,687.12x = 3,618,027,414,598,747 - Step 5: Solve for x
x = 3,618,027,414,598,747/76,831,687.12 - Step 6: Final answer
x = 47,090,302.85
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.