Finding the Fourth Proportional to 20,198,756.35, 27,874,461.97 and 11,497,489.20
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Solution
The fourth proportional to 20,198,756.35, 27,874,461.97 and 11,497,489.20 is: 15,866,636.53
Step by Step Solution
- Step 1: Write the proportion equation
20,198,756.35 : 27,874,461.97 = 11,497,489.20 : x - Step 2: Convert to fraction form
20,198,756.35/27,874,461.97 = 11,497,489.20/x - Step 3: Cross multiply
20,198,756.35x = 27,874,461.97 × 11,497,489.20 - Step 4: Simplify right side
20,198,756.35x = 320,486,325,455,885.69 - Step 5: Solve for x
x = 320,486,325,455,885.69/20,198,756.35 - Step 6: Final answer
x = 15,866,636.53
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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.