Finding the Fourth Proportional to 11,876,750.40, 17,815,125.60 and 10,176,139.20
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Solution
The fourth proportional to 11,876,750.40, 17,815,125.60 and 10,176,139.20 is: 15,264,208.80
Step by Step Solution
- Step 1: Write the proportion equation
11,876,750.40 : 17,815,125.60 = 10,176,139.20 : x - Step 2: Convert to fraction form
11,876,750.40/17,815,125.60 = 10,176,139.20/x - Step 3: Cross multiply
11,876,750.40x = 17,815,125.60 × 10,176,139.20 - Step 4: Simplify right side
11,876,750.40x = 181,289,197,971,083.53 - Step 5: Solve for x
x = 181,289,197,971,083.53/11,876,750.40 - Step 6: Final answer
x = 15,264,208.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.