Finding the Fourth Proportional to 6,900,748.20, 10,354,232.70 and 3,305,125.80
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Solution
The fourth proportional to 6,900,748.20, 10,354,232.70 and 3,305,125.80 is: 4,959,178.43
Step by Step Solution
- Step 1: Write the proportion equation
6,900,748.20 : 10,354,232.70 = 3,305,125.80 : x - Step 2: Convert to fraction form
6,900,748.20/10,354,232.70 = 3,305,125.80/x - Step 3: Cross multiply
6,900,748.20x = 10,354,232.70 × 3,305,125.80 - Step 4: Simplify right side
6,900,748.20x = 34,222,041,635,973.66 - Step 5: Solve for x
x = 34,222,041,635,973.66/6,900,748.20 - Step 6: Final answer
x = 4,959,178.43
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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.