Finding the Fourth Proportional to 8,247,871.68, 12,368,841.12 and 2,855,060.16
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Solution
The fourth proportional to 8,247,871.68, 12,368,841.12 and 2,855,060.16 is: 4,281,563.40
Step by Step Solution
- Step 1: Write the proportion equation
8,247,871.68 : 12,368,841.12 = 2,855,060.16 : x - Step 2: Convert to fraction form
8,247,871.68/12,368,841.12 = 2,855,060.16/x - Step 3: Cross multiply
8,247,871.68x = 12,368,841.12 × 2,855,060.16 - Step 4: Simplify right side
8,247,871.68x = 35,313,785,507,081.78 - Step 5: Solve for x
x = 35,313,785,507,081.78/8,247,871.68 - Step 6: Final answer
x = 4,281,563.40
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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.