Finding the Fourth Proportional to 8,121,907.84, 12,185,575.01 and 2,657,252.76
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Solution
The fourth proportional to 8,121,907.84, 12,185,575.01 and 2,657,252.76 is: 3,986,766.84
Step by Step Solution
- Step 1: Write the proportion equation
8,121,907.84 : 12,185,575.01 = 2,657,252.76 : x - Step 2: Convert to fraction form
8,121,907.84/12,185,575.01 = 2,657,252.76/x - Step 3: Cross multiply
8,121,907.84x = 12,185,575.01 × 2,657,252.76 - Step 4: Simplify right side
8,121,907.84x = 32,380,152,847,035.91 - Step 5: Solve for x
x = 32,380,152,847,035.91/8,121,907.84 - Step 6: Final answer
x = 3,986,766.84
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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.