Finding the Fourth Proportional to 8,171,639.48, 11,276,027.97 and 5,031,404.48
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Solution
The fourth proportional to 8,171,639.48, 11,276,027.97 and 5,031,404.48 is: 6,942,824.36
Step by Step Solution
- Step 1: Write the proportion equation
8,171,639.48 : 11,276,027.97 = 5,031,404.48 : x - Step 2: Convert to fraction form
8,171,639.48/11,276,027.97 = 5,031,404.48/x - Step 3: Cross multiply
8,171,639.48x = 11,276,027.97 × 5,031,404.48 - Step 4: Simplify right side
8,171,639.48x = 56,734,257,588,483.16 - Step 5: Solve for x
x = 56,734,257,588,483.16/8,171,639.48 - Step 6: Final answer
x = 6,942,824.36
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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.