Finding the Fourth Proportional to 12,861,302.20, 19,266,729.34 and 7,458,602.08
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Solution
The fourth proportional to 12,861,302.20, 19,266,729.34 and 7,458,602.08 is: 11,173,275.09
Step by Step Solution
- Step 1: Write the proportion equation
12,861,302.20 : 19,266,729.34 = 7,458,602.08 : x - Step 2: Convert to fraction form
12,861,302.20/19,266,729.34 = 7,458,602.08/x - Step 3: Cross multiply
12,861,302.20x = 19,266,729.34 × 7,458,602.08 - Step 4: Simplify right side
12,861,302.20x = 143,702,867,530,121.03 - Step 5: Solve for x
x = 143,702,867,530,121.03/12,861,302.20 - Step 6: Final answer
x = 11,173,275.09
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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.