Finding the Fourth Proportional to 8,318,734.20, 12,478,101.30 and 2,927,341.80
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Solution
The fourth proportional to 8,318,734.20, 12,478,101.30 and 2,927,341.80 is: 4,391,012.70
Step by Step Solution
- Step 1: Write the proportion equation
8,318,734.20 : 12,478,101.30 = 2,927,341.80 : x - Step 2: Convert to fraction form
8,318,734.20/12,478,101.30 = 2,927,341.80/x - Step 3: Cross multiply
8,318,734.20x = 12,478,101.30 × 2,927,341.80 - Step 4: Simplify right side
8,318,734.20x = 36,527,667,520,124.34 - Step 5: Solve for x
x = 36,527,667,520,124.34/8,318,734.20 - Step 6: Final answer
x = 4,391,012.70
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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.