Finding the Fourth Proportional to 7,031,348.15, 9,704,778.16 and 4,278,922.39
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Solution
The fourth proportional to 7,031,348.15, 9,704,778.16 and 4,278,922.39 is: 5,905,836.50
Step by Step Solution
- Step 1: Write the proportion equation
7,031,348.15 : 9,704,778.16 = 4,278,922.39 : x - Step 2: Convert to fraction form
7,031,348.15/9,704,778.16 = 4,278,922.39/x - Step 3: Cross multiply
7,031,348.15x = 9,704,778.16 × 4,278,922.39 - Step 4: Simplify right side
7,031,348.15x = 41,525,992,558,807 - Step 5: Solve for x
x = 41,525,992,558,807/7,031,348.15 - Step 6: Final answer
x = 5,905,836.50
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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.