Finding the Fourth Proportional to 3,438,595.20, 5,157,892.80 and 3,107,920.80
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Solution
The fourth proportional to 3,438,595.20, 5,157,892.80 and 3,107,920.80 is: 4,661,881.20
Step by Step Solution
- Step 1: Write the proportion equation
3,438,595.20 : 5,157,892.80 = 3,107,920.80 : x - Step 2: Convert to fraction form
3,438,595.20/5,157,892.80 = 3,107,920.80/x - Step 3: Cross multiply
3,438,595.20x = 5,157,892.80 × 3,107,920.80 - Step 4: Simplify right side
3,438,595.20x = 16,030,322,317,290.24 - Step 5: Solve for x
x = 16,030,322,317,290.24/3,438,595.20 - Step 6: Final answer
x = 4,661,881.20
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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.