Finding the Fourth Proportional to 10,207,621.20, 15,334,241.40 and 8,528,005.20
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Solution
The fourth proportional to 10,207,621.20, 15,334,241.40 and 8,528,005.20 is: 12,811,064.19
Step by Step Solution
- Step 1: Write the proportion equation
10,207,621.20 : 15,334,241.40 = 8,528,005.20 : x - Step 2: Convert to fraction form
10,207,621.20/15,334,241.40 = 8,528,005.20/x - Step 3: Cross multiply
10,207,621.20x = 15,334,241.40 × 8,528,005.20 - Step 4: Simplify right side
10,207,621.20x = 130,770,490,397,255.27 - Step 5: Solve for x
x = 130,770,490,397,255.27/10,207,621.20 - Step 6: Final answer
x = 12,811,064.19
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.