Finding the Fourth Proportional to 87,480,407.70, 131,220,611.55 and 70,474,295.70
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Solution
The fourth proportional to 87,480,407.70, 131,220,611.55 and 70,474,295.70 is: 105,711,443.55
Step by Step Solution
- Step 1: Write the proportion equation
87,480,407.70 : 131,220,611.55 = 70,474,295.70 : x - Step 2: Convert to fraction form
87,480,407.70/131,220,611.55 = 70,474,295.70/x - Step 3: Cross multiply
87,480,407.70x = 131,220,611.55 × 70,474,295.70 - Step 4: Simplify right side
87,480,407.70x = 9,247,680,180,309,536 - Step 5: Solve for x
x = 9,247,680,180,309,536/87,480,407.70 - Step 6: Final answer
x = 105,711,443.55
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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.