Finding the Fourth Proportional to 10,907,846.91, 15,080,038.52 and 8,186,868.99
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Solution
The fourth proportional to 10,907,846.91, 15,080,038.52 and 8,186,868.99 is: 11,318,301.47
Step by Step Solution
- Step 1: Write the proportion equation
10,907,846.91 : 15,080,038.52 = 8,186,868.99 : x - Step 2: Convert to fraction form
10,907,846.91/15,080,038.52 = 8,186,868.99/x - Step 3: Cross multiply
10,907,846.91x = 15,080,038.52 × 8,186,868.99 - Step 4: Simplify right side
10,907,846.91x = 123,458,299,686,459.16 - Step 5: Solve for x
x = 123,458,299,686,459.16/10,907,846.91 - Step 6: Final answer
x = 11,318,301.47
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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.