Finding the Fourth Proportional to 80,801,077.80, 121,201,616.70 and 40,396,981.80
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Solution
The fourth proportional to 80,801,077.80, 121,201,616.70 and 40,396,981.80 is: 60,595,472.70
Step by Step Solution
- Step 1: Write the proportion equation
80,801,077.80 : 121,201,616.70 = 40,396,981.80 : x - Step 2: Convert to fraction form
80,801,077.80/121,201,616.70 = 40,396,981.80/x - Step 3: Cross multiply
80,801,077.80x = 121,201,616.70 × 40,396,981.80 - Step 4: Simplify right side
80,801,077.80x = 4,896,179,503,960,476 - Step 5: Solve for x
x = 4,896,179,503,960,476/80,801,077.80 - Step 6: Final answer
x = 60,595,472.70
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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.