Finding the Fourth Proportional to 13,106,068.34, 18,086,458.26 and 7,305,217.94
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Solution
The fourth proportional to 13,106,068.34, 18,086,458.26 and 7,305,217.94 is: 10,081,247.55
Step by Step Solution
- Step 1: Write the proportion equation
13,106,068.34 : 18,086,458.26 = 7,305,217.94 : x - Step 2: Convert to fraction form
13,106,068.34/18,086,458.26 = 7,305,217.94/x - Step 3: Cross multiply
13,106,068.34x = 18,086,458.26 × 7,305,217.94 - Step 4: Simplify right side
13,106,068.34x = 132,125,519,352,013.20 - Step 5: Solve for x
x = 132,125,519,352,013.20/13,106,068.34 - Step 6: Final answer
x = 10,081,247.55
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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.