Finding the Fourth Proportional to 202,375,508.91, 279,278,292.47 and 109,556,013.75
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Solution
The fourth proportional to 202,375,508.91, 279,278,292.47 and 109,556,013.75 is: 151,187,347.79
Step by Step Solution
- Step 1: Write the proportion equation
202,375,508.91 : 279,278,292.47 = 109,556,013.75 : x - Step 2: Convert to fraction form
202,375,508.91/279,278,292.47 = 109,556,013.75/x - Step 3: Cross multiply
202,375,508.91x = 279,278,292.47 × 109,556,013.75 - Step 4: Simplify right side
202,375,508.91x = 30,596,616,449,372,060 - Step 5: Solve for x
x = 30,596,616,449,372,060/202,375,508.91 - Step 6: Final answer
x = 151,187,347.79
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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.