Finding the Fourth Proportional to 5,440,220.76, 7,507,208.16 and 2,992,436.64
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Solution
The fourth proportional to 5,440,220.76, 7,507,208.16 and 2,992,436.64 is: 4,129,399.48
Step by Step Solution
- Step 1: Write the proportion equation
5,440,220.76 : 7,507,208.16 = 2,992,436.64 : x - Step 2: Convert to fraction form
5,440,220.76/7,507,208.16 = 2,992,436.64/x - Step 3: Cross multiply
5,440,220.76x = 7,507,208.16 × 2,992,436.64 - Step 4: Simplify right side
5,440,220.76x = 22,464,844,762,090.98 - Step 5: Solve for x
x = 22,464,844,762,090.98/5,440,220.76 - Step 6: Final answer
x = 4,129,399.48
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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.