Finding the Fourth Proportional to 20,080,078.64, 27,710,682.36 and 10,912,723.28
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Solution
The fourth proportional to 20,080,078.64, 27,710,682.36 and 10,912,723.28 is: 15,059,652.60
Step by Step Solution
- Step 1: Write the proportion equation
20,080,078.64 : 27,710,682.36 = 10,912,723.28 : x - Step 2: Convert to fraction form
20,080,078.64/27,710,682.36 = 10,912,723.28/x - Step 3: Cross multiply
20,080,078.64x = 27,710,682.36 × 10,912,723.28 - Step 4: Simplify right side
20,080,078.64x = 302,399,008,494,657.31 - Step 5: Solve for x
x = 302,399,008,494,657.31/20,080,078.64 - Step 6: Final answer
x = 15,059,652.60
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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.