Finding the Fourth Proportional to 80,802,908.80, 121,204,363.20 and 40,398,812.80
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Solution
The fourth proportional to 80,802,908.80, 121,204,363.20 and 40,398,812.80 is: 60,598,219.20
Step by Step Solution
- Step 1: Write the proportion equation
80,802,908.80 : 121,204,363.20 = 40,398,812.80 : x - Step 2: Convert to fraction form
80,802,908.80/121,204,363.20 = 40,398,812.80/x - Step 3: Cross multiply
80,802,908.80x = 121,204,363.20 × 40,398,812.80 - Step 4: Simplify right side
80,802,908.80x = 4,896,512,379,460,009 - Step 5: Solve for x
x = 4,896,512,379,460,009/80,802,908.80 - Step 6: Final answer
x = 60,598,219.20
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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.