Finding the Fourth Proportional to 8,512,411.20, 12,768,631.38 and 6,817,335.54
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Solution
The fourth proportional to 8,512,411.20, 12,768,631.38 and 6,817,335.54 is: 10,226,014.99
Step by Step Solution
- Step 1: Write the proportion equation
8,512,411.20 : 12,768,631.38 = 6,817,335.54 : x - Step 2: Convert to fraction form
8,512,411.20/12,768,631.38 = 6,817,335.54/x - Step 3: Cross multiply
8,512,411.20x = 12,768,631.38 × 6,817,335.54 - Step 4: Simplify right side
8,512,411.20x = 87,048,044,504,033.25 - Step 5: Solve for x
x = 87,048,044,504,033.25/8,512,411.20 - Step 6: Final answer
x = 10,226,014.99
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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.