Finding the Fourth Proportional to 4,098,697.20, 6,151,763.70 and 2,078,346.60
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Solution
The fourth proportional to 4,098,697.20, 6,151,763.70 and 2,078,346.60 is: 3,119,405.15
Step by Step Solution
- Step 1: Write the proportion equation
4,098,697.20 : 6,151,763.70 = 2,078,346.60 : x - Step 2: Convert to fraction form
4,098,697.20/6,151,763.70 = 2,078,346.60/x - Step 3: Cross multiply
4,098,697.20x = 6,151,763.70 × 2,078,346.60 - Step 4: Simplify right side
4,098,697.20x = 12,785,497,169,898.42 - Step 5: Solve for x
x = 12,785,497,169,898.42/4,098,697.20 - Step 6: Final answer
x = 3,119,405.15
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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.