Finding the Fourth Proportional to 13,176,859.43, 18,183,073.17 and 8,019,650.99
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Solution
The fourth proportional to 13,176,859.43, 18,183,073.17 and 8,019,650.99 is: 11,066,514.10
Step by Step Solution
- Step 1: Write the proportion equation
13,176,859.43 : 18,183,073.17 = 8,019,650.99 : x - Step 2: Convert to fraction form
13,176,859.43/18,183,073.17 = 8,019,650.99/x - Step 3: Cross multiply
13,176,859.43x = 18,183,073.17 × 8,019,650.99 - Step 4: Simplify right side
13,176,859.43x = 145,821,900,658,117.59 - Step 5: Solve for x
x = 145,821,900,658,117.59/13,176,859.43 - Step 6: Final answer
x = 11,066,514.10
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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.