Finding the Fourth Proportional to 12,440,793.60, 18,659,863.80 and 4,353,923.70
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Solution
The fourth proportional to 12,440,793.60, 18,659,863.80 and 4,353,923.70 is: 6,530,421.28
Step by Step Solution
- Step 1: Write the proportion equation
12,440,793.60 : 18,659,863.80 = 4,353,923.70 : x - Step 2: Convert to fraction form
12,440,793.60/18,659,863.80 = 4,353,923.70/x - Step 3: Cross multiply
12,440,793.60x = 18,659,863.80 × 4,353,923.70 - Step 4: Simplify right side
12,440,793.60x = 81,243,623,237,592.06 - Step 5: Solve for x
x = 81,243,623,237,592.06/12,440,793.60 - Step 6: Final answer
x = 6,530,421.28
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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.