Finding the Fourth Proportional to 6,998,949.75, 9,658,550.79 and 3,779,685.75
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Solution
The fourth proportional to 6,998,949.75, 9,658,550.79 and 3,779,685.75 is: 5,215,966.41
Step by Step Solution
- Step 1: Write the proportion equation
6,998,949.75 : 9,658,550.79 = 3,779,685.75 : x - Step 2: Convert to fraction form
6,998,949.75/9,658,550.79 = 3,779,685.75/x - Step 3: Cross multiply
6,998,949.75x = 9,658,550.79 × 3,779,685.75 - Step 4: Simplify right side
6,998,949.75x = 36,506,286,786,614.24 - Step 5: Solve for x
x = 36,506,286,786,614.24/6,998,949.75 - Step 6: Final answer
x = 5,215,966.41
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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.