Finding the Fourth Proportional to 18,946,243.52, 28,415,079.12 and 8,701,254.08
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Solution
The fourth proportional to 18,946,243.52, 28,415,079.12 and 8,701,254.08 is: 13,049,912.66
Step by Step Solution
- Step 1: Write the proportion equation
18,946,243.52 : 28,415,079.12 = 8,701,254.08 : x - Step 2: Convert to fraction form
18,946,243.52/28,415,079.12 = 8,701,254.08/x - Step 3: Cross multiply
18,946,243.52x = 28,415,079.12 × 8,701,254.08 - Step 4: Simplify right side
18,946,243.52x = 247,246,823,126,422.81 - Step 5: Solve for x
x = 247,246,823,126,422.81/18,946,243.52 - Step 6: Final answer
x = 13,049,912.66
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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.