Finding the Fourth Proportional to 7,021,278.12, 10,531,917.17 and 4,855,489.98
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Solution
The fourth proportional to 7,021,278.12, 10,531,917.17 and 4,855,489.98 is: 7,283,234.96
Step by Step Solution
- Step 1: Write the proportion equation
7,021,278.12 : 10,531,917.17 = 4,855,489.98 : x - Step 2: Convert to fraction form
7,021,278.12/10,531,917.17 = 4,855,489.98/x - Step 3: Cross multiply
7,021,278.12x = 10,531,917.17 × 4,855,489.98 - Step 4: Simplify right side
7,021,278.12x = 51,137,618,289,124.96 - Step 5: Solve for x
x = 51,137,618,289,124.96/7,021,278.12 - Step 6: Final answer
x = 7,283,234.96
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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.