Finding the Fourth Proportional to 7,045,971.52, 9,723,459.36 and 4,145,471.68
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Solution
The fourth proportional to 7,045,971.52, 9,723,459.36 and 4,145,471.68 is: 5,720,761.90
Step by Step Solution
- Step 1: Write the proportion equation
7,045,971.52 : 9,723,459.36 = 4,145,471.68 : x - Step 2: Convert to fraction form
7,045,971.52/9,723,459.36 = 4,145,471.68/x - Step 3: Cross multiply
7,045,971.52x = 9,723,459.36 × 4,145,471.68 - Step 4: Simplify right side
7,045,971.52x = 40,308,325,408,510.92 - Step 5: Solve for x
x = 40,308,325,408,510.92/7,045,971.52 - Step 6: Final answer
x = 5,720,761.90
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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.