Finding the Fourth Proportional to 99,794,521.45, 149,691,782.18 and 48,709,311.85
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Solution
The fourth proportional to 99,794,521.45, 149,691,782.18 and 48,709,311.85 is: 73,063,967.78
Step by Step Solution
- Step 1: Write the proportion equation
99,794,521.45 : 149,691,782.18 = 48,709,311.85 : x - Step 2: Convert to fraction form
99,794,521.45/149,691,782.18 = 48,709,311.85/x - Step 3: Cross multiply
99,794,521.45x = 149,691,782.18 × 48,709,311.85 - Step 4: Simplify right side
99,794,521.45x = 7,291,383,699,344,347 - Step 5: Solve for x
x = 7,291,383,699,344,347/99,794,521.45 - Step 6: Final answer
x = 73,063,967.78
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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.