Finding the Fourth Proportional to 2,176,819.20, 3,265,228.80 and 1,616,947.20
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Solution
The fourth proportional to 2,176,819.20, 3,265,228.80 and 1,616,947.20 is: 2,425,420.80
Step by Step Solution
- Step 1: Write the proportion equation
2,176,819.20 : 3,265,228.80 = 1,616,947.20 : x - Step 2: Convert to fraction form
2,176,819.20/3,265,228.80 = 1,616,947.20/x - Step 3: Cross multiply
2,176,819.20x = 3,265,228.80 × 1,616,947.20 - Step 4: Simplify right side
2,176,819.20x = 5,279,702,565,519.36 - Step 5: Solve for x
x = 5,279,702,565,519.36/2,176,819.20 - Step 6: Final answer
x = 2,425,420.80
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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.