Finding the Fourth Proportional to 8,512,639.68, 12,768,973.92 and 6,817,563.84
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Solution
The fourth proportional to 8,512,639.68, 12,768,973.92 and 6,817,563.84 is: 10,226,357.29
Step by Step Solution
- Step 1: Write the proportion equation
8,512,639.68 : 12,768,973.92 = 6,817,563.84 : x - Step 2: Convert to fraction form
8,512,639.68/12,768,973.92 = 6,817,563.84/x - Step 3: Cross multiply
8,512,639.68x = 12,768,973.92 × 6,817,563.84 - Step 4: Simplify right side
8,512,639.68x = 87,053,294,870,895.05 - Step 5: Solve for x
x = 87,053,294,870,895.05/8,512,639.68 - Step 6: Final answer
x = 10,226,357.29
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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.