Finding the Fourth Proportional to 5,437,905.50, 7,504,507.10 and 3,115,246.91
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Solution
The fourth proportional to 5,437,905.50, 7,504,507.10 and 3,115,246.91 is: 4,299,153.88
Step by Step Solution
- Step 1: Write the proportion equation
5,437,905.50 : 7,504,507.10 = 3,115,246.91 : x - Step 2: Convert to fraction form
5,437,905.50/7,504,507.10 = 3,115,246.91/x - Step 3: Cross multiply
5,437,905.50x = 7,504,507.10 × 3,115,246.91 - Step 4: Simplify right side
5,437,905.50x = 23,378,392,524,613.64 - Step 5: Solve for x
x = 23,378,392,524,613.64/5,437,905.50 - Step 6: Final answer
x = 4,299,153.88
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.