Finding the Fourth Proportional to 21,909,420.88, 32,867,121.84 and 9,126,935.62
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Solution
The fourth proportional to 21,909,420.88, 32,867,121.84 and 9,126,935.62 is: 13,691,649.21
Step by Step Solution
- Step 1: Write the proportion equation
21,909,420.88 : 32,867,121.84 = 9,126,935.62 : x - Step 2: Convert to fraction form
21,909,420.88/32,867,121.84 = 9,126,935.62/x - Step 3: Cross multiply
21,909,420.88x = 32,867,121.84 × 9,126,935.62 - Step 4: Simplify right side
21,909,420.88x = 299,976,105,048,375.94 - Step 5: Solve for x
x = 299,976,105,048,375.94/21,909,420.88 - Step 6: Final answer
x = 13,691,649.21
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.