Finding the Fourth Proportional to 18,876,903.21, 26,052,125.22 and 11,539,031.58
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Solution
The fourth proportional to 18,876,903.21, 26,052,125.22 and 11,539,031.58 is: 15,925,085.40
Step by Step Solution
- Step 1: Write the proportion equation
18,876,903.21 : 26,052,125.22 = 11,539,031.58 : x - Step 2: Convert to fraction form
18,876,903.21/26,052,125.22 = 11,539,031.58/x - Step 3: Cross multiply
18,876,903.21x = 26,052,125.22 × 11,539,031.58 - Step 4: Simplify right side
18,876,903.21x = 300,616,295,639,694.44 - Step 5: Solve for x
x = 300,616,295,639,694.44/18,876,903.21 - Step 6: Final answer
x = 15,925,085.40
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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.