Finding the Fourth Proportional to 13,319,272.56, 18,380,596.17 and 7,207,701.06
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Solution
The fourth proportional to 13,319,272.56, 18,380,596.17 and 7,207,701.06 is: 9,946,627.48
Step by Step Solution
- Step 1: Write the proportion equation
13,319,272.56 : 18,380,596.17 = 7,207,701.06 : x - Step 2: Convert to fraction form
13,319,272.56/18,380,596.17 = 7,207,701.06/x - Step 3: Cross multiply
13,319,272.56x = 18,380,596.17 × 7,207,701.06 - Step 4: Simplify right side
13,319,272.56x = 132,481,842,497,940.95 - Step 5: Solve for x
x = 132,481,842,497,940.95/13,319,272.56 - Step 6: Final answer
x = 9,946,627.48
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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.