Finding the Fourth Proportional to 15,172,364.54, 20,937,853.94 and 8,296,846.60
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Solution
The fourth proportional to 15,172,364.54, 20,937,853.94 and 8,296,846.60 is: 11,449,643.32
Step by Step Solution
- Step 1: Write the proportion equation
15,172,364.54 : 20,937,853.94 = 8,296,846.60 : x - Step 2: Convert to fraction form
15,172,364.54/20,937,853.94 = 8,296,846.60/x - Step 3: Cross multiply
15,172,364.54x = 20,937,853.94 × 8,296,846.60 - Step 4: Simplify right side
15,172,364.54x = 173,718,162,273,385.59 - Step 5: Solve for x
x = 173,718,162,273,385.59/15,172,364.54 - Step 6: Final answer
x = 11,449,643.32
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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.