Finding the Fourth Proportional to 7,630,961.52, 10,530,605.34 and 4,193,128.80
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Solution
The fourth proportional to 7,630,961.52, 10,530,605.34 and 4,193,128.80 is: 5,786,450.95
Step by Step Solution
- Step 1: Write the proportion equation
7,630,961.52 : 10,530,605.34 = 4,193,128.80 : x - Step 2: Convert to fraction form
7,630,961.52/10,530,605.34 = 4,193,128.80/x - Step 3: Cross multiply
7,630,961.52x = 10,530,605.34 × 4,193,128.80 - Step 4: Simplify right side
7,630,961.52x = 44,156,184,532,587.79 - Step 5: Solve for x
x = 44,156,184,532,587.79/7,630,961.52 - Step 6: Final answer
x = 5,786,450.95
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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.