Finding the Fourth Proportional to 3,818,220.10, 5,269,164.57 and 2,248,420.42
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Solution
The fourth proportional to 3,818,220.10, 5,269,164.57 and 2,248,420.42 is: 3,102,832.45
Step by Step Solution
- Step 1: Write the proportion equation
3,818,220.10 : 5,269,164.57 = 2,248,420.42 : x - Step 2: Convert to fraction form
3,818,220.10/5,269,164.57 = 2,248,420.42/x - Step 3: Cross multiply
3,818,220.10x = 5,269,164.57 × 2,248,420.42 - Step 4: Simplify right side
3,818,220.10x = 11,847,297,215,528.52 - Step 5: Solve for x
x = 11,847,297,215,528.52/3,818,220.10 - Step 6: Final answer
x = 3,102,832.45
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Double scale
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.