Finding the Fourth Proportional to 11,286,493.19, 15,580,116.69 and 7,620,370.41
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Solution
The fourth proportional to 11,286,493.19, 15,580,116.69 and 7,620,370.41 is: 10,519,322.37
Step by Step Solution
- Step 1: Write the proportion equation
11,286,493.19 : 15,580,116.69 = 7,620,370.41 : x - Step 2: Convert to fraction form
11,286,493.19/15,580,116.69 = 7,620,370.41/x - Step 3: Cross multiply
11,286,493.19x = 15,580,116.69 × 7,620,370.41 - Step 4: Simplify right side
11,286,493.19x = 118,726,260,238,672.19 - Step 5: Solve for x
x = 118,726,260,238,672.19/11,286,493.19 - Step 6: Final answer
x = 10,519,322.37
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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.