Finding the Fourth Proportional to 19,378,916.66, 26,743,508.70 and 11,120,491.20
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Solution
The fourth proportional to 19,378,916.66, 26,743,508.70 and 11,120,491.20 is: 15,346,624.29
Step by Step Solution
- Step 1: Write the proportion equation
19,378,916.66 : 26,743,508.70 = 11,120,491.20 : x - Step 2: Convert to fraction form
19,378,916.66/26,743,508.70 = 11,120,491.20/x - Step 3: Cross multiply
19,378,916.66x = 26,743,508.70 × 11,120,491.20 - Step 4: Simplify right side
19,378,916.66x = 297,400,953,155,473.44 - Step 5: Solve for x
x = 297,400,953,155,473.44/19,378,916.66 - Step 6: Final answer
x = 15,346,624.29
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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.