Finding the Fourth Proportional to 5,239,905.56, 7,859,857.68 and 1,453,388.42
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Solution
The fourth proportional to 5,239,905.56, 7,859,857.68 and 1,453,388.42 is: 2,180,082.45
Step by Step Solution
- Step 1: Write the proportion equation
5,239,905.56 : 7,859,857.68 = 1,453,388.42 : x - Step 2: Convert to fraction form
5,239,905.56/7,859,857.68 = 1,453,388.42/x - Step 3: Cross multiply
5,239,905.56x = 7,859,857.68 × 1,453,388.42 - Step 4: Simplify right side
5,239,905.56x = 11,423,426,134,960.06 - Step 5: Solve for x
x = 11,423,426,134,960.06/5,239,905.56 - Step 6: Final answer
x = 2,180,082.45
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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.