Finding the Fourth Proportional to 18,638,495.31, 27,944,752.71 and 8,258,072.10
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Solution
The fourth proportional to 18,638,495.31, 27,944,752.71 and 8,258,072.10 is: 12,381,352.62
Step by Step Solution
- Step 1: Write the proportion equation
18,638,495.31 : 27,944,752.71 = 8,258,072.10 : x - Step 2: Convert to fraction form
18,638,495.31/27,944,752.71 = 8,258,072.10/x - Step 3: Cross multiply
18,638,495.31x = 27,944,752.71 × 8,258,072.10 - Step 4: Simplify right side
18,638,495.31x = 230,769,782,695,850.38 - Step 5: Solve for x
x = 230,769,782,695,850.38/18,638,495.31 - Step 6: Final answer
x = 12,381,352.62
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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.