Finding the Fourth Proportional to 18,716,076, 25,828,254 and 10,131,372
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Solution
The fourth proportional to 18,716,076, 25,828,254 and 10,131,372 is: 13,981,330.78
Step by Step Solution
- Step 1: Write the proportion equation
18,716,076 : 25,828,254 = 10,131,372 : x - Step 2: Convert to fraction form
18,716,076/25,828,254 = 10,131,372/x - Step 3: Cross multiply
18,716,076x = 25,828,254 × 10,131,372 - Step 4: Simplify right side
18,716,076x = 261,675,649,384,488 - Step 5: Solve for x
x = 261,675,649,384,488/18,716,076 - Step 6: Final answer
x = 13,981,330.78
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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.