Finding the Fourth Proportional to 8,171,645.42, 11,276,036.16 and 5,031,410.42
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Solution
The fourth proportional to 8,171,645.42, 11,276,036.16 and 5,031,410.42 is: 6,942,832.55
Step by Step Solution
- Step 1: Write the proportion equation
8,171,645.42 : 11,276,036.16 = 5,031,410.42 : x - Step 2: Convert to fraction form
8,171,645.42/11,276,036.16 = 5,031,410.42/x - Step 3: Cross multiply
8,171,645.42x = 11,276,036.16 × 5,031,410.42 - Step 4: Simplify right side
8,171,645.42x = 56,734,365,831,720.79 - Step 5: Solve for x
x = 56,734,365,831,720.79/8,171,645.42 - Step 6: Final answer
x = 6,942,832.55
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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.