Finding the Fourth Proportional to 2,921,140.20, 4,381,710.30 and 2,809,165.80
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Solution
The fourth proportional to 2,921,140.20, 4,381,710.30 and 2,809,165.80 is: 4,213,748.70
Step by Step Solution
- Step 1: Write the proportion equation
2,921,140.20 : 4,381,710.30 = 2,809,165.80 : x - Step 2: Convert to fraction form
2,921,140.20/4,381,710.30 = 2,809,165.80/x - Step 3: Cross multiply
2,921,140.20x = 4,381,710.30 × 2,809,165.80 - Step 4: Simplify right side
2,921,140.20x = 12,308,950,720,267.74 - Step 5: Solve for x
x = 12,308,950,720,267.74/2,921,140.20 - Step 6: Final answer
x = 4,213,748.70
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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.