Finding the Fourth Proportional to 11,072,815.68, 15,288,041.18 and 7,162,051.44
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Solution
The fourth proportional to 11,072,815.68, 15,288,041.18 and 7,162,051.44 is: 9,888,518.02
Step by Step Solution
- Step 1: Write the proportion equation
11,072,815.68 : 15,288,041.18 = 7,162,051.44 : x - Step 2: Convert to fraction form
11,072,815.68/15,288,041.18 = 7,162,051.44/x - Step 3: Cross multiply
11,072,815.68x = 15,288,041.18 × 7,162,051.44 - Step 4: Simplify right side
11,072,815.68x = 109,493,737,347,998.30 - Step 5: Solve for x
x = 109,493,737,347,998.30/11,072,815.68 - Step 6: Final answer
x = 9,888,518.02
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.