Finding the Fourth Proportional to 248,163,418.80, 372,245,128.20 and 66,410,596.80
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Solution
The fourth proportional to 248,163,418.80, 372,245,128.20 and 66,410,596.80 is: 99,615,895.20
Step by Step Solution
- Step 1: Write the proportion equation
248,163,418.80 : 372,245,128.20 = 66,410,596.80 : x - Step 2: Convert to fraction form
248,163,418.80/372,245,128.20 = 66,410,596.80/x - Step 3: Cross multiply
248,163,418.80x = 372,245,128.20 × 66,410,596.80 - Step 4: Simplify right side
248,163,418.80x = 24,721,021,119,654,508 - Step 5: Solve for x
x = 24,721,021,119,654,508/248,163,418.80 - Step 6: Final answer
x = 99,615,895.20
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.