Finding the Fourth Proportional to 11,386,287.90, 15,713,469.72 and 6,229,649.70
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Solution
The fourth proportional to 11,386,287.90, 15,713,469.72 and 6,229,649.70 is: 8,597,131.29
Step by Step Solution
- Step 1: Write the proportion equation
11,386,287.90 : 15,713,469.72 = 6,229,649.70 : x - Step 2: Convert to fraction form
11,386,287.90/15,713,469.72 = 6,229,649.70/x - Step 3: Cross multiply
11,386,287.90x = 15,713,469.72 × 6,229,649.70 - Step 4: Simplify right side
11,386,287.90x = 97,889,411,927,157.09 - Step 5: Solve for x
x = 97,889,411,927,157.09/11,386,287.90 - Step 6: Final answer
x = 8,597,131.29
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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.