Finding the Fourth Proportional to 10,988,773.20, 15,147,029.97 and 8,661,892.68
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Solution
The fourth proportional to 10,988,773.20, 15,147,029.97 and 8,661,892.68 is: 11,939,635.63
Step by Step Solution
- Step 1: Write the proportion equation
10,988,773.20 : 15,147,029.97 = 8,661,892.68 : x - Step 2: Convert to fraction form
10,988,773.20/15,147,029.97 = 8,661,892.68/x - Step 3: Cross multiply
10,988,773.20x = 15,147,029.97 × 8,661,892.68 - Step 4: Simplify right side
10,988,773.20x = 131,201,948,020,883.62 - Step 5: Solve for x
x = 131,201,948,020,883.62/10,988,773.20 - Step 6: Final answer
x = 11,939,635.63
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.