Finding the Fourth Proportional to 10,361,620.20, 15,542,430.30 and 9,731,245.80
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Solution
The fourth proportional to 10,361,620.20, 15,542,430.30 and 9,731,245.80 is: 14,596,868.70
Step by Step Solution
- Step 1: Write the proportion equation
10,361,620.20 : 15,542,430.30 = 9,731,245.80 : x - Step 2: Convert to fraction form
10,361,620.20/15,542,430.30 = 9,731,245.80/x - Step 3: Cross multiply
10,361,620.20x = 15,542,430.30 × 9,731,245.80 - Step 4: Simplify right side
10,361,620.20x = 151,247,209,578,667.75 - Step 5: Solve for x
x = 151,247,209,578,667.75/10,361,620.20 - Step 6: Final answer
x = 14,596,868.70
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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.