Finding the Fourth Proportional to 6,877,421.96, 9,491,715.06 and 4,161,190.28
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Solution
The fourth proportional to 6,877,421.96, 9,491,715.06 and 4,161,190.28 is: 5,742,970.65
Step by Step Solution
- Step 1: Write the proportion equation
6,877,421.96 : 9,491,715.06 = 4,161,190.28 : x - Step 2: Convert to fraction form
6,877,421.96/9,491,715.06 = 4,161,190.28/x - Step 3: Cross multiply
6,877,421.96x = 9,491,715.06 × 4,161,190.28 - Step 4: Simplify right side
6,877,421.96x = 39,496,832,448,201.62 - Step 5: Solve for x
x = 39,496,832,448,201.62/6,877,421.96 - Step 6: Final answer
x = 5,742,970.65
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1.5x scale
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.