Finding the Fourth Proportional to 7,617,731.38, 11,420,584.84 and 3,776,905.59
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Solution
The fourth proportional to 7,617,731.38, 11,420,584.84 and 3,776,905.59 is: 5,662,377.49
Step by Step Solution
- Step 1: Write the proportion equation
7,617,731.38 : 11,420,584.84 = 3,776,905.59 : x - Step 2: Convert to fraction form
7,617,731.38/11,420,584.84 = 3,776,905.59/x - Step 3: Cross multiply
7,617,731.38x = 11,420,584.84 × 3,776,905.59 - Step 4: Simplify right side
7,617,731.38x = 43,134,470,723,265.25 - Step 5: Solve for x
x = 43,134,470,723,265.25/7,617,731.38 - Step 6: Final answer
x = 5,662,377.49
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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.