Finding the Fourth Proportional to 3,438,305.70, 5,157,458.55 and 3,189,473.70
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Solution
The fourth proportional to 3,438,305.70, 5,157,458.55 and 3,189,473.70 is: 4,784,210.55
Step by Step Solution
- Step 1: Write the proportion equation
3,438,305.70 : 5,157,458.55 = 3,189,473.70 : x - Step 2: Convert to fraction form
3,438,305.70/5,157,458.55 = 3,189,473.70/x - Step 3: Cross multiply
3,438,305.70x = 5,157,458.55 × 3,189,473.70 - Step 4: Simplify right side
3,438,305.70x = 16,449,578,404,065.13 - Step 5: Solve for x
x = 16,449,578,404,065.13/3,438,305.70 - Step 6: Final answer
x = 4,784,210.55
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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.