Finding the Fourth Proportional to 5,698,310.94, 7,863,667.56 and 3,119,990.94
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Solution
The fourth proportional to 5,698,310.94, 7,863,667.56 and 3,119,990.94 is: 4,305,586.66
Step by Step Solution
- Step 1: Write the proportion equation
5,698,310.94 : 7,863,667.56 = 3,119,990.94 : x - Step 2: Convert to fraction form
5,698,310.94/7,863,667.56 = 3,119,990.94/x - Step 3: Cross multiply
5,698,310.94x = 7,863,667.56 × 3,119,990.94 - Step 4: Simplify right side
5,698,310.94x = 24,534,571,542,371.91 - Step 5: Solve for x
x = 24,534,571,542,371.91/5,698,310.94 - Step 6: Final answer
x = 4,305,586.66
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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.