Finding the Fourth Proportional to 18,490,491.17, 27,739,519.64 and 6,358,378.97
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Solution
The fourth proportional to 18,490,491.17, 27,739,519.64 and 6,358,378.97 is: 9,538,869.29
Step by Step Solution
- Step 1: Write the proportion equation
18,490,491.17 : 27,739,519.64 = 6,358,378.97 : x - Step 2: Convert to fraction form
18,490,491.17/27,739,519.64 = 6,358,378.97/x - Step 3: Cross multiply
18,490,491.17x = 27,739,519.64 × 6,358,378.97 - Step 4: Simplify right side
18,490,491.17x = 176,378,378,378,278.81 - Step 5: Solve for x
x = 176,378,378,378,278.81/18,490,491.17 - Step 6: Final answer
x = 9,538,869.29
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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.