Finding the Fourth Proportional to 8,422,655.48, 11,623,272.21 and 4,555,176.63
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Solution
The fourth proportional to 8,422,655.48, 11,623,272.21 and 4,555,176.63 is: 6,286,147.89
Step by Step Solution
- Step 1: Write the proportion equation
8,422,655.48 : 11,623,272.21 = 4,555,176.63 : x - Step 2: Convert to fraction form
8,422,655.48/11,623,272.21 = 4,555,176.63/x - Step 3: Cross multiply
8,422,655.48x = 11,623,272.21 × 4,555,176.63 - Step 4: Simplify right side
8,422,655.48x = 52,946,057,935,120.45 - Step 5: Solve for x
x = 52,946,057,935,120.45/8,422,655.48 - Step 6: Final answer
x = 6,286,147.89
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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.