Finding the Fourth Proportional to 12,286,871.10, 18,444,303.45 and 7,241,024.70
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Solution
The fourth proportional to 12,286,871.10, 18,444,303.45 and 7,241,024.70 is: 10,869,785.79
Step by Step Solution
- Step 1: Write the proportion equation
12,286,871.10 : 18,444,303.45 = 7,241,024.70 : x - Step 2: Convert to fraction form
12,286,871.10/18,444,303.45 = 7,241,024.70/x - Step 3: Cross multiply
12,286,871.10x = 18,444,303.45 × 7,241,024.70 - Step 4: Simplify right side
12,286,871.10x = 133,555,656,855,745.22 - Step 5: Solve for x
x = 133,555,656,855,745.22/12,286,871.10 - Step 6: Final answer
x = 10,869,785.79
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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.