Finding the Fourth Proportional to 82,972,604.70, 124,458,907.05 and 74,752,983.90
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Solution
The fourth proportional to 82,972,604.70, 124,458,907.05 and 74,752,983.90 is: 112,129,475.85
Step by Step Solution
- Step 1: Write the proportion equation
82,972,604.70 : 124,458,907.05 = 74,752,983.90 : x - Step 2: Convert to fraction form
82,972,604.70/124,458,907.05 = 74,752,983.90/x - Step 3: Cross multiply
82,972,604.70x = 124,458,907.05 × 74,752,983.90 - Step 4: Simplify right side
82,972,604.70x = 9,303,674,674,920,248 - Step 5: Solve for x
x = 9,303,674,674,920,248/82,972,604.70 - Step 6: Final answer
x = 112,129,475.85
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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.