Finding the Fourth Proportional to 189,226,722.62, 261,132,887.04 and 104,453,863.94
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Solution
The fourth proportional to 189,226,722.62, 261,132,887.04 and 104,453,863.94 is: 144,146,337.66
Step by Step Solution
- Step 1: Write the proportion equation
189,226,722.62 : 261,132,887.04 = 104,453,863.94 : x - Step 2: Convert to fraction form
189,226,722.62/261,132,887.04 = 104,453,863.94/x - Step 3: Cross multiply
189,226,722.62x = 261,132,887.04 × 104,453,863.94 - Step 4: Simplify right side
189,226,722.62x = 27,276,339,053,135,548 - Step 5: Solve for x
x = 27,276,339,053,135,548/189,226,722.62 - Step 6: Final answer
x = 144,146,337.66
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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.