Finding the Fourth Proportional to 13,246,855.35, 18,280,876.05 and 7,286,497.68
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Solution
The fourth proportional to 13,246,855.35, 18,280,876.05 and 7,286,497.68 is: 10,055,485.43
Step by Step Solution
- Step 1: Write the proportion equation
13,246,855.35 : 18,280,876.05 = 7,286,497.68 : x - Step 2: Convert to fraction form
13,246,855.35/18,280,876.05 = 7,286,497.68/x - Step 3: Cross multiply
13,246,855.35x = 18,280,876.05 × 7,286,497.68 - Step 4: Simplify right side
13,246,855.35x = 133,203,560,926,692.56 - Step 5: Solve for x
x = 133,203,560,926,692.56/13,246,855.35 - Step 6: Final answer
x = 10,055,485.43
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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.