Finding the Fourth Proportional to 7,207,975.80, 9,947,010.48 and 3,944,788.62
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Solution
The fourth proportional to 7,207,975.80, 9,947,010.48 and 3,944,788.62 is: 5,443,810.42
Step by Step Solution
- Step 1: Write the proportion equation
7,207,975.80 : 9,947,010.48 = 3,944,788.62 : x - Step 2: Convert to fraction form
7,207,975.80/9,947,010.48 = 3,944,788.62/x - Step 3: Cross multiply
7,207,975.80x = 9,947,010.48 × 3,944,788.62 - Step 4: Simplify right side
7,207,975.80x = 39,238,853,744,524.74 - Step 5: Solve for x
x = 39,238,853,744,524.74/7,207,975.80 - Step 6: Final answer
x = 5,443,810.42
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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.