Finding the Fourth Proportional to 12,158,317.26, 18,232,430.67 and 4,482,399.24
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Solution
The fourth proportional to 12,158,317.26, 18,232,430.67 and 4,482,399.24 is: 6,721,738.84
Step by Step Solution
- Step 1: Write the proportion equation
12,158,317.26 : 18,232,430.67 = 4,482,399.24 : x - Step 2: Convert to fraction form
12,158,317.26/18,232,430.67 = 4,482,399.24/x - Step 3: Cross multiply
12,158,317.26x = 18,232,430.67 × 4,482,399.24 - Step 4: Simplify right side
12,158,317.26x = 81,725,033,378,560.70 - Step 5: Solve for x
x = 81,725,033,378,560.70/12,158,317.26 - Step 6: Final answer
x = 6,721,738.84
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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.