Finding the Fourth Proportional to 99,098,143.80, 148,647,215.70 and 84,749,236.80
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Solution
The fourth proportional to 99,098,143.80, 148,647,215.70 and 84,749,236.80 is: 127,123,855.20
Step by Step Solution
- Step 1: Write the proportion equation
99,098,143.80 : 148,647,215.70 = 84,749,236.80 : x - Step 2: Convert to fraction form
99,098,143.80/148,647,215.70 = 84,749,236.80/x - Step 3: Cross multiply
99,098,143.80x = 148,647,215.70 × 84,749,236.80 - Step 4: Simplify right side
99,098,143.80x = 12,597,738,083,019,976 - Step 5: Solve for x
x = 12,597,738,083,019,976/99,098,143.80 - Step 6: Final answer
x = 127,123,855.20
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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.