Finding the Fourth Proportional to 292,603,204.20, 438,904,806.30 and 120,203,743.80
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Solution
The fourth proportional to 292,603,204.20, 438,904,806.30 and 120,203,743.80 is: 180,305,615.70
Step by Step Solution
- Step 1: Write the proportion equation
292,603,204.20 : 438,904,806.30 = 120,203,743.80 : x - Step 2: Convert to fraction form
292,603,204.20/438,904,806.30 = 120,203,743.80/x - Step 3: Cross multiply
292,603,204.20x = 438,904,806.30 × 120,203,743.80 - Step 4: Simplify right side
292,603,204.20x = 52,758,000,889,073,824 - Step 5: Solve for x
x = 52,758,000,889,073,824/292,603,204.20 - Step 6: Final answer
x = 180,305,615.70
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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.