Finding the Fourth Proportional to 87,725,199.92, 121,060,805.16 and 48,035,240.96
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Solution
The fourth proportional to 87,725,199.92, 121,060,805.16 and 48,035,240.96 is: 66,288,648.55
Step by Step Solution
- Step 1: Write the proportion equation
87,725,199.92 : 121,060,805.16 = 48,035,240.96 : x - Step 2: Convert to fraction form
87,725,199.92/121,060,805.16 = 48,035,240.96/x - Step 3: Cross multiply
87,725,199.92x = 121,060,805.16 × 48,035,240.96 - Step 4: Simplify right side
87,725,199.92x = 5,815,184,946,672,211 - Step 5: Solve for x
x = 5,815,184,946,672,211/87,725,199.92 - Step 6: Final answer
x = 66,288,648.55
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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.