Finding the Fourth Proportional to 31,490,844.40, 47,236,266.60 and 29,697,231.03
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Solution
The fourth proportional to 31,490,844.40, 47,236,266.60 and 29,697,231.03 is: 44,545,846.55
Step by Step Solution
- Step 1: Write the proportion equation
31,490,844.40 : 47,236,266.60 = 29,697,231.03 : x - Step 2: Convert to fraction form
31,490,844.40/47,236,266.60 = 29,697,231.03/x - Step 3: Cross multiply
31,490,844.40x = 47,236,266.60 × 29,697,231.03 - Step 4: Simplify right side
31,490,844.40x = 1,402,786,322,214,872.75 - Step 5: Solve for x
x = 1,402,786,322,214,872.75/31,490,844.40 - Step 6: Final answer
x = 44,545,846.55
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.