Finding the Fourth Proportional to 11,290,663.54, 15,577,682.97 and 6,395,107.78
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Solution
The fourth proportional to 11,290,663.54, 15,577,682.97 and 6,395,107.78 is: 8,823,304.42
Step by Step Solution
- Step 1: Write the proportion equation
11,290,663.54 : 15,577,682.97 = 6,395,107.78 : x - Step 2: Convert to fraction form
11,290,663.54/15,577,682.97 = 6,395,107.78/x - Step 3: Cross multiply
11,290,663.54x = 15,577,682.97 × 6,395,107.78 - Step 4: Simplify right side
11,290,663.54x = 99,620,961,555,820.52 - Step 5: Solve for x
x = 99,620,961,555,820.52/11,290,663.54 - Step 6: Final answer
x = 8,823,304.42
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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.