Finding the Fourth Proportional to 4,377,811.20, 6,561,187.20 and 2,129,107.20
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Solution
The fourth proportional to 4,377,811.20, 6,561,187.20 and 2,129,107.20 is: 3,190,971.53
Step by Step Solution
- Step 1: Write the proportion equation
4,377,811.20 : 6,561,187.20 = 2,129,107.20 : x - Step 2: Convert to fraction form
4,377,811.20/6,561,187.20 = 2,129,107.20/x - Step 3: Cross multiply
4,377,811.20x = 6,561,187.20 × 2,129,107.20 - Step 4: Simplify right side
4,377,811.20x = 13,969,470,908,067.84 - Step 5: Solve for x
x = 13,969,470,908,067.84/4,377,811.20 - Step 6: Final answer
x = 3,190,971.53
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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.