Finding the Fourth Proportional to 13,412,657.60, 20,124,235.20 and 4,893,855.20
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Solution
The fourth proportional to 13,412,657.60, 20,124,235.20 and 4,893,855.20 is: 7,342,697.92
Step by Step Solution
- Step 1: Write the proportion equation
13,412,657.60 : 20,124,235.20 = 4,893,855.20 : x - Step 2: Convert to fraction form
13,412,657.60/20,124,235.20 = 4,893,855.20/x - Step 3: Cross multiply
13,412,657.60x = 20,124,235.20 × 4,893,855.20 - Step 4: Simplify right side
13,412,657.60x = 98,485,093,079,543.05 - Step 5: Solve for x
x = 98,485,093,079,543.05/13,412,657.60 - Step 6: Final answer
x = 7,342,697.92
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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.