Finding the Fourth Proportional to 4,920,756.70, 7,381,135.05 and 4,471,984.30
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Solution
The fourth proportional to 4,920,756.70, 7,381,135.05 and 4,471,984.30 is: 6,707,976.45
Step by Step Solution
- Step 1: Write the proportion equation
4,920,756.70 : 7,381,135.05 = 4,471,984.30 : x - Step 2: Convert to fraction form
4,920,756.70/7,381,135.05 = 4,471,984.30/x - Step 3: Cross multiply
4,920,756.70x = 7,381,135.05 × 4,471,984.30 - Step 4: Simplify right side
4,920,756.70x = 33,008,320,059,779.71 - Step 5: Solve for x
x = 33,008,320,059,779.71/4,920,756.70 - Step 6: Final answer
x = 6,707,976.45
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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.