Finding the Fourth Proportional to 280,464,747.20, 422,611,497.69 and 230,466,777.92
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Solution
The fourth proportional to 280,464,747.20, 422,611,497.69 and 230,466,777.92 is: 347,273,271.09
Step by Step Solution
- Step 1: Write the proportion equation
280,464,747.20 : 422,611,497.69 = 230,466,777.92 : x - Step 2: Convert to fraction form
280,464,747.20/422,611,497.69 = 230,466,777.92/x - Step 3: Cross multiply
280,464,747.20x = 422,611,497.69 × 230,466,777.92 - Step 4: Simplify right side
280,464,747.20x = 97,397,910,184,559,824 - Step 5: Solve for x
x = 97,397,910,184,559,824/280,464,747.20 - Step 6: Final answer
x = 347,273,271.09
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.