Finding the Fourth Proportional to 76,471,431.40, 114,691,206.30 and 27,972,130.60
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Solution
The fourth proportional to 76,471,431.40, 114,691,206.30 and 27,972,130.60 is: 41,952,364.99
Step by Step Solution
- Step 1: Write the proportion equation
76,471,431.40 : 114,691,206.30 = 27,972,130.60 : x - Step 2: Convert to fraction form
76,471,431.40/114,691,206.30 = 27,972,130.60/x - Step 3: Cross multiply
76,471,431.40x = 114,691,206.30 × 27,972,130.60 - Step 4: Simplify right side
76,471,431.40x = 3,208,157,401,295,143 - Step 5: Solve for x
x = 3,208,157,401,295,143/76,471,431.40 - Step 6: Final answer
x = 41,952,364.99
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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.