Finding the Fourth Proportional to 10,455,409.11, 15,678,796.77 and 4,540,360.07
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Solution
The fourth proportional to 10,455,409.11, 15,678,796.77 and 4,540,360.07 is: 6,808,665.45
Step by Step Solution
- Step 1: Write the proportion equation
10,455,409.11 : 15,678,796.77 = 4,540,360.07 : x - Step 2: Convert to fraction form
10,455,409.11/15,678,796.77 = 4,540,360.07/x - Step 3: Cross multiply
10,455,409.11x = 15,678,796.77 × 4,540,360.07 - Step 4: Simplify right side
10,455,409.11x = 71,187,382,721,759 - Step 5: Solve for x
x = 71,187,382,721,759/10,455,409.11 - Step 6: Final answer
x = 6,808,665.45
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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.