Finding the Fourth Proportional to 80,432,801.70, 120,649,202.55 and 26,580,113.70
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Solution
The fourth proportional to 80,432,801.70, 120,649,202.55 and 26,580,113.70 is: 39,870,170.55
Step by Step Solution
- Step 1: Write the proportion equation
80,432,801.70 : 120,649,202.55 = 26,580,113.70 : x - Step 2: Convert to fraction form
80,432,801.70/120,649,202.55 = 26,580,113.70/x - Step 3: Cross multiply
80,432,801.70x = 120,649,202.55 × 26,580,113.70 - Step 4: Simplify right side
80,432,801.70x = 3,206,869,521,593,330 - Step 5: Solve for x
x = 3,206,869,521,593,330/80,432,801.70 - Step 6: Final answer
x = 39,870,170.55
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1.5x scale
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.