Finding the Fourth Proportional to 13,319,257.50, 18,380,575.35 and 7,207,686
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Solution
The fourth proportional to 13,319,257.50, 18,380,575.35 and 7,207,686 is: 9,946,606.68
Step by Step Solution
- Step 1: Write the proportion equation
13,319,257.50 : 18,380,575.35 = 7,207,686 : x - Step 2: Convert to fraction form
13,319,257.50/18,380,575.35 = 7,207,686/x - Step 3: Cross multiply
13,319,257.50x = 18,380,575.35 × 7,207,686 - Step 4: Simplify right side
13,319,257.50x = 132,481,415,622,140.11 - Step 5: Solve for x
x = 132,481,415,622,140.11/13,319,257.50 - Step 6: Final answer
x = 9,946,606.68
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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.