Finding the Fourth Proportional to 3,638,202,220.80, 5,457,303,331.20 and 2,005,615,468.80
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Solution
The fourth proportional to 3,638,202,220.80, 5,457,303,331.20 and 2,005,615,468.80 is: 3,008,423,203.20
Step by Step Solution
- Step 1: Write the proportion equation
3,638,202,220.80 : 5,457,303,331.20 = 2,005,615,468.80 : x - Step 2: Convert to fraction form
3,638,202,220.80/5,457,303,331.20 = 2,005,615,468.80/x - Step 3: Cross multiply
3,638,202,220.80x = 5,457,303,331.20 × 2,005,615,468.80 - Step 4: Simplify right side
3,638,202,220.80x = 10,945,251,978,988,488,704 - Step 5: Solve for x
x = 10,945,251,978,988,488,704/3,638,202,220.80 - Step 6: Final answer
x = 3,008,423,203.20
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Double scale
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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.