Finding the Fourth Proportional to 15,177,315.57, 20,944,758.16 and 8,207,992.97
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Solution
The fourth proportional to 15,177,315.57, 20,944,758.16 and 8,207,992.97 is: 11,327,064.19
Step by Step Solution
- Step 1: Write the proportion equation
15,177,315.57 : 20,944,758.16 = 8,207,992.97 : x - Step 2: Convert to fraction form
15,177,315.57/20,944,758.16 = 8,207,992.97/x - Step 3: Cross multiply
15,177,315.57x = 20,944,758.16 × 8,207,992.97 - Step 4: Simplify right side
15,177,315.57x = 171,914,427,766,941.09 - Step 5: Solve for x
x = 171,914,427,766,941.09/15,177,315.57 - Step 6: Final answer
x = 11,327,064.19
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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.