Finding the Fourth Proportional to 10,538,702.76, 14,538,956.49 and 7,055,163.90
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Solution
The fourth proportional to 10,538,702.76, 14,538,956.49 and 7,055,163.90 is: 9,733,144.90
Step by Step Solution
- Step 1: Write the proportion equation
10,538,702.76 : 14,538,956.49 = 7,055,163.90 : x - Step 2: Convert to fraction form
10,538,702.76/14,538,956.49 = 7,055,163.90/x - Step 3: Cross multiply
10,538,702.76x = 14,538,956.49 × 7,055,163.90 - Step 4: Simplify right side
10,538,702.76x = 102,574,720,971,918.72 - Step 5: Solve for x
x = 102,574,720,971,918.72/10,538,702.76 - Step 6: Final answer
x = 9,733,144.90
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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.