Finding the Fourth Proportional to 19,474,372.42, 29,214,215.70 and 8,112,163.84
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Solution
The fourth proportional to 19,474,372.42, 29,214,215.70 and 8,112,163.84 is: 12,169,352.58
Step by Step Solution
- Step 1: Write the proportion equation
19,474,372.42 : 29,214,215.70 = 8,112,163.84 : x - Step 2: Convert to fraction form
19,474,372.42/29,214,215.70 = 8,112,163.84/x - Step 3: Cross multiply
19,474,372.42x = 29,214,215.70 × 8,112,163.84 - Step 4: Simplify right side
19,474,372.42x = 236,990,504,215,500.28 - Step 5: Solve for x
x = 236,990,504,215,500.28/19,474,372.42 - Step 6: Final answer
x = 12,169,352.58
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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.