Finding the Fourth Proportional to 21,681,874.36, 32,512,722.53 and 8,031,355.57
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Solution
The fourth proportional to 21,681,874.36, 32,512,722.53 and 8,031,355.57 is: 12,043,296.20
Step by Step Solution
- Step 1: Write the proportion equation
21,681,874.36 : 32,512,722.53 = 8,031,355.57 : x - Step 2: Convert to fraction form
21,681,874.36/32,512,722.53 = 8,031,355.57/x - Step 3: Cross multiply
21,681,874.36x = 32,512,722.53 × 8,031,355.57 - Step 4: Simplify right side
21,681,874.36x = 261,121,235,187,180 - Step 5: Solve for x
x = 261,121,235,187,180/21,681,874.36 - Step 6: Final answer
x = 12,043,296.20
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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.