Finding the Fourth Proportional to 8,085,198.90, 12,127,798.35 and 3,290,420.10
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Solution
The fourth proportional to 8,085,198.90, 12,127,798.35 and 3,290,420.10 is: 4,935,630.15
Step by Step Solution
- Step 1: Write the proportion equation
8,085,198.90 : 12,127,798.35 = 3,290,420.10 : x - Step 2: Convert to fraction form
8,085,198.90/12,127,798.35 = 3,290,420.10/x - Step 3: Cross multiply
8,085,198.90x = 12,127,798.35 × 3,290,420.10 - Step 4: Simplify right side
8,085,198.90x = 39,905,551,459,586.84 - Step 5: Solve for x
x = 39,905,551,459,586.84/8,085,198.90 - Step 6: Final answer
x = 4,935,630.15
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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.