Finding the Fourth Proportional to 5,138,814.98, 7,709,194.65 and 2,065,045.09
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Solution
The fourth proportional to 5,138,814.98, 7,709,194.65 and 2,065,045.09 is: 3,097,958.31
Step by Step Solution
- Step 1: Write the proportion equation
5,138,814.98 : 7,709,194.65 = 2,065,045.09 : x - Step 2: Convert to fraction form
5,138,814.98/7,709,194.65 = 2,065,045.09/x - Step 3: Cross multiply
5,138,814.98x = 7,709,194.65 × 2,065,045.09 - Step 4: Simplify right side
5,138,814.98x = 15,919,834,559,836.77 - Step 5: Solve for x
x = 15,919,834,559,836.77/5,138,814.98 - Step 6: Final answer
x = 3,097,958.31
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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.