Finding the Fourth Proportional to 18,428,896.53, 27,643,356.95 and 7,643,301.30
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Solution
The fourth proportional to 18,428,896.53, 27,643,356.95 and 7,643,301.30 is: 11,464,956.99
Step by Step Solution
- Step 1: Write the proportion equation
18,428,896.53 : 27,643,356.95 = 7,643,301.30 : x - Step 2: Convert to fraction form
18,428,896.53/27,643,356.95 = 7,643,301.30/x - Step 3: Cross multiply
18,428,896.53x = 27,643,356.95 × 7,643,301.30 - Step 4: Simplify right side
18,428,896.53x = 211,286,506,074,082.53 - Step 5: Solve for x
x = 211,286,506,074,082.53/18,428,896.53 - Step 6: Final answer
x = 11,464,956.99
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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.