Finding the Fourth Proportional to 12,138,960.18, 16,751,569.58 and 6,632,216.74
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Solution
The fourth proportional to 12,138,960.18, 16,751,569.58 and 6,632,216.74 is: 9,152,352.31
Step by Step Solution
- Step 1: Write the proportion equation
12,138,960.18 : 16,751,569.58 = 6,632,216.74 : x - Step 2: Convert to fraction form
12,138,960.18/16,751,569.58 = 6,632,216.74/x - Step 3: Cross multiply
12,138,960.18x = 16,751,569.58 × 6,632,216.74 - Step 4: Simplify right side
12,138,960.18x = 111,100,040,189,750.78 - Step 5: Solve for x
x = 111,100,040,189,750.78/12,138,960.18 - Step 6: Final answer
x = 9,152,352.31
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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.