Finding the Fourth Proportional to 3,138,305.80, 4,707,458.70 and 2,221,570.09
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Solution
The fourth proportional to 3,138,305.80, 4,707,458.70 and 2,221,570.09 is: 3,332,355.14
Step by Step Solution
- Step 1: Write the proportion equation
3,138,305.80 : 4,707,458.70 = 2,221,570.09 : x - Step 2: Convert to fraction form
3,138,305.80/4,707,458.70 = 2,221,570.09/x - Step 3: Cross multiply
3,138,305.80x = 4,707,458.70 × 2,221,570.09 - Step 4: Simplify right side
3,138,305.80x = 10,457,949,447,830.28 - Step 5: Solve for x
x = 10,457,949,447,830.28/3,138,305.80 - Step 6: Final answer
x = 3,332,355.14
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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.