Finding the Fourth Proportional to 5,478,760.79, 7,560,698.72 and 3,031,474.98
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Solution
The fourth proportional to 5,478,760.79, 7,560,698.72 and 3,031,474.98 is: 4,183,440.36
Step by Step Solution
- Step 1: Write the proportion equation
5,478,760.79 : 7,560,698.72 = 3,031,474.98 : x - Step 2: Convert to fraction form
5,478,760.79/7,560,698.72 = 3,031,474.98/x - Step 3: Cross multiply
5,478,760.79x = 7,560,698.72 × 3,031,474.98 - Step 4: Simplify right side
5,478,760.79x = 22,920,068,985,840.65 - Step 5: Solve for x
x = 22,920,068,985,840.65/5,478,760.79 - Step 6: Final answer
x = 4,183,440.36
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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.