Finding the Fourth Proportional to 9,647,155.20, 14,458,291.20 and 7,392,115.20
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Solution
The fourth proportional to 9,647,155.20, 14,458,291.20 and 7,392,115.20 is: 11,078,639.45
Step by Step Solution
- Step 1: Write the proportion equation
9,647,155.20 : 14,458,291.20 = 7,392,115.20 : x - Step 2: Convert to fraction form
9,647,155.20/14,458,291.20 = 7,392,115.20/x - Step 3: Cross multiply
9,647,155.20x = 14,458,291.20 × 7,392,115.20 - Step 4: Simplify right side
9,647,155.20x = 106,877,354,145,546.23 - Step 5: Solve for x
x = 106,877,354,145,546.23/9,647,155.20 - Step 6: Final answer
x = 11,078,639.45
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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.