Finding the Fourth Proportional to 239,855,445.24, 331,000,625.34 and 129,847,158.36
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Solution
The fourth proportional to 239,855,445.24, 331,000,625.34 and 129,847,158.36 is: 179,189,138.58
Step by Step Solution
- Step 1: Write the proportion equation
239,855,445.24 : 331,000,625.34 = 129,847,158.36 : x - Step 2: Convert to fraction form
239,855,445.24/331,000,625.34 = 129,847,158.36/x - Step 3: Cross multiply
239,855,445.24x = 331,000,625.34 × 129,847,158.36 - Step 4: Simplify right side
239,855,445.24x = 42,979,490,615,782,008 - Step 5: Solve for x
x = 42,979,490,615,782,008/239,855,445.24 - Step 6: Final answer
x = 179,189,138.58
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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.