Finding the Fourth Proportional to 7,182,692.05, 9,912,325.35 and 3,919,717.03
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Solution
The fourth proportional to 7,182,692.05, 9,912,325.35 and 3,919,717.03 is: 5,409,324.28
Step by Step Solution
- Step 1: Write the proportion equation
7,182,692.05 : 9,912,325.35 = 3,919,717.03 : x - Step 2: Convert to fraction form
7,182,692.05/9,912,325.35 = 3,919,717.03/x - Step 3: Cross multiply
7,182,692.05x = 9,912,325.35 × 3,919,717.03 - Step 4: Simplify right side
7,182,692.05x = 38,853,510,481,295.70 - Step 5: Solve for x
x = 38,853,510,481,295.70/7,182,692.05 - Step 6: Final answer
x = 5,409,324.28
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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.