Finding the Fourth Proportional to 7,644,779.81, 10,549,797.67 and 4,207,020.84
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Solution
The fourth proportional to 7,644,779.81, 10,549,797.67 and 4,207,020.84 is: 5,805,689.60
Step by Step Solution
- Step 1: Write the proportion equation
7,644,779.81 : 10,549,797.67 = 4,207,020.84 : x - Step 2: Convert to fraction form
7,644,779.81/10,549,797.67 = 4,207,020.84/x - Step 3: Cross multiply
7,644,779.81x = 10,549,797.67 × 4,207,020.84 - Step 4: Simplify right side
7,644,779.81x = 44,383,218,660,732.22 - Step 5: Solve for x
x = 44,383,218,660,732.22/7,644,779.81 - Step 6: Final answer
x = 5,805,689.60
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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.