Finding the Fourth Proportional to 5,329,404.70, 7,994,107.05 and 4,972,486.30
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Solution
The fourth proportional to 5,329,404.70, 7,994,107.05 and 4,972,486.30 is: 7,458,729.45
Step by Step Solution
- Step 1: Write the proportion equation
5,329,404.70 : 7,994,107.05 = 4,972,486.30 : x - Step 2: Convert to fraction form
5,329,404.70/7,994,107.05 = 4,972,486.30/x - Step 3: Cross multiply
5,329,404.70x = 7,994,107.05 × 4,972,486.30 - Step 4: Simplify right side
5,329,404.70x = 39,750,587,786,858.41 - Step 5: Solve for x
x = 39,750,587,786,858.41/5,329,404.70 - Step 6: Final answer
x = 7,458,729.45
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.