Finding the Fourth Proportional to 5,440,479.21, 7,507,861.26 and 2,993,037.74
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Solution
The fourth proportional to 5,440,479.21, 7,507,861.26 and 2,993,037.74 is: 4,130,392.05
Step by Step Solution
- Step 1: Write the proportion equation
5,440,479.21 : 7,507,861.26 = 2,993,037.74 : x - Step 2: Convert to fraction form
5,440,479.21/7,507,861.26 = 2,993,037.74/x - Step 3: Cross multiply
5,440,479.21x = 7,507,861.26 × 2,993,037.74 - Step 4: Simplify right side
5,440,479.21x = 22,471,312,060,324.64 - Step 5: Solve for x
x = 22,471,312,060,324.64/5,440,479.21 - Step 6: Final answer
x = 4,130,392.05
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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.