Finding the Fourth Proportional to 10,348,082.12, 15,523,994.28 and 4,279,519.20
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Solution
The fourth proportional to 10,348,082.12, 15,523,994.28 and 4,279,519.20 is: 6,420,052.61
Step by Step Solution
- Step 1: Write the proportion equation
10,348,082.12 : 15,523,994.28 = 4,279,519.20 : x - Step 2: Convert to fraction form
10,348,082.12/15,523,994.28 = 4,279,519.20/x - Step 3: Cross multiply
10,348,082.12x = 15,523,994.28 × 4,279,519.20 - Step 4: Simplify right side
10,348,082.12x = 66,435,231,581,950.18 - Step 5: Solve for x
x = 66,435,231,581,950.18/10,348,082.12 - Step 6: Final answer
x = 6,420,052.61
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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.