Finding the Fourth Proportional to 11,313,560.58, 15,613,067.70 and 6,418,988.70
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Solution
The fourth proportional to 11,313,560.58, 15,613,067.70 and 6,418,988.70 is: 8,858,405.31
Step by Step Solution
- Step 1: Write the proportion equation
11,313,560.58 : 15,613,067.70 = 6,418,988.70 : x - Step 2: Convert to fraction form
11,313,560.58/15,613,067.70 = 6,418,988.70/x - Step 3: Cross multiply
11,313,560.58x = 15,613,067.70 × 6,418,988.70 - Step 4: Simplify right side
11,313,560.58x = 100,220,105,138,634.98 - Step 5: Solve for x
x = 100,220,105,138,634.98/11,313,560.58 - Step 6: Final answer
x = 8,858,405.31
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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.