Finding the Fourth Proportional to 3,907,887.68, 5,395,516.80 and 2,440,031.20
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Solution
The fourth proportional to 3,907,887.68, 5,395,516.80 and 2,440,031.20 is: 3,368,886.32
Step by Step Solution
- Step 1: Write the proportion equation
3,907,887.68 : 5,395,516.80 = 2,440,031.20 : x - Step 2: Convert to fraction form
3,907,887.68/5,395,516.80 = 2,440,031.20/x - Step 3: Cross multiply
3,907,887.68x = 5,395,516.80 × 2,440,031.20 - Step 4: Simplify right side
3,907,887.68x = 13,165,229,332,124.16 - Step 5: Solve for x
x = 13,165,229,332,124.16/3,907,887.68 - Step 6: Final answer
x = 3,368,886.32
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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.