Finding the Fourth Proportional to 13,538,338.41, 18,682,798.44 and 7,343,369.31
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Solution
The fourth proportional to 13,538,338.41, 18,682,798.44 and 7,343,369.31 is: 10,133,790.76
Step by Step Solution
- Step 1: Write the proportion equation
13,538,338.41 : 18,682,798.44 = 7,343,369.31 : x - Step 2: Convert to fraction form
13,538,338.41/18,682,798.44 = 7,343,369.31/x - Step 3: Cross multiply
13,538,338.41x = 18,682,798.44 × 7,343,369.31 - Step 4: Simplify right side
13,538,338.41x = 137,194,688,689,211.88 - Step 5: Solve for x
x = 137,194,688,689,211.88/13,538,338.41 - Step 6: Final answer
x = 10,133,790.76
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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.