Finding the Fourth Proportional to 10,345,431.84, 15,519,082.70 and 3,955,739.55
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Solution
The fourth proportional to 10,345,431.84, 15,519,082.70 and 3,955,739.55 is: 5,933,966.81
Step by Step Solution
- Step 1: Write the proportion equation
10,345,431.84 : 15,519,082.70 = 3,955,739.55 : x - Step 2: Convert to fraction form
10,345,431.84/15,519,082.70 = 3,955,739.55/x - Step 3: Cross multiply
10,345,431.84x = 15,519,082.70 × 3,955,739.55 - Step 4: Simplify right side
10,345,431.84x = 61,389,449,216,110.78 - Step 5: Solve for x
x = 61,389,449,216,110.78/10,345,431.84 - Step 6: Final answer
x = 5,933,966.81
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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.