Finding the Fourth Proportional to 8,126,390.56, 11,215,561.36 and 5,029,907.12
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Solution
The fourth proportional to 8,126,390.56, 11,215,561.36 and 5,029,907.12 is: 6,941,978.92
Step by Step Solution
- Step 1: Write the proportion equation
8,126,390.56 : 11,215,561.36 = 5,029,907.12 : x - Step 2: Convert to fraction form
8,126,390.56/11,215,561.36 = 5,029,907.12/x - Step 3: Cross multiply
8,126,390.56x = 11,215,561.36 × 5,029,907.12 - Step 4: Simplify right side
8,126,390.56x = 56,413,231,939,460.88 - Step 5: Solve for x
x = 56,413,231,939,460.88/8,126,390.56 - Step 6: Final answer
x = 6,941,978.92
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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.