Finding the Fourth Proportional to 18,687,757.05, 28,031,635.58 and 18,687,757.05
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Solution
The fourth proportional to 18,687,757.05, 28,031,635.58 and 18,687,757.05 is: 28,031,635.58
Step by Step Solution
- Step 1: Write the proportion equation
18,687,757.05 : 28,031,635.58 = 18,687,757.05 : x - Step 2: Convert to fraction form
18,687,757.05/28,031,635.58 = 18,687,757.05/x - Step 3: Cross multiply
18,687,757.05x = 28,031,635.58 × 18,687,757.05 - Step 4: Simplify right side
18,687,757.05x = 523,848,395,339,737.06 - Step 5: Solve for x
x = 523,848,395,339,737.06/18,687,757.05 - Step 6: Final answer
x = 28,031,635.58
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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.