Finding the Fourth Proportional to 13,981,472.99, 19,295,031.34 and 7,786,519.68
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Solution
The fourth proportional to 13,981,472.99, 19,295,031.34 and 7,786,519.68 is: 10,745,730.54
Step by Step Solution
- Step 1: Write the proportion equation
13,981,472.99 : 19,295,031.34 = 7,786,519.68 : x - Step 2: Convert to fraction form
13,981,472.99/19,295,031.34 = 7,786,519.68/x - Step 3: Cross multiply
13,981,472.99x = 19,295,031.34 × 7,786,519.68 - Step 4: Simplify right side
13,981,472.99x = 150,241,141,232,659.09 - Step 5: Solve for x
x = 150,241,141,232,659.09/13,981,472.99 - Step 6: Final answer
x = 10,745,730.54
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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.