Finding the Fourth Proportional to 13,541,438.58, 18,687,183.21 and 7,740,344.88
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Solution
The fourth proportional to 13,541,438.58, 18,687,183.21 and 7,740,344.88 is: 10,681,674.77
Step by Step Solution
- Step 1: Write the proportion equation
13,541,438.58 : 18,687,183.21 = 7,740,344.88 : x - Step 2: Convert to fraction form
13,541,438.58/18,687,183.21 = 7,740,344.88/x - Step 3: Cross multiply
13,541,438.58x = 18,687,183.21 × 7,740,344.88 - Step 4: Simplify right side
13,541,438.58x = 144,645,242,796,870.25 - Step 5: Solve for x
x = 144,645,242,796,870.25/13,541,438.58 - Step 6: Final answer
x = 10,681,674.77
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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.