Finding the Fourth Proportional to 18,341,570.40, 27,447,037.20 and 15,971,445.60
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Solution
The fourth proportional to 18,341,570.40, 27,447,037.20 and 15,971,445.60 is: 23,900,290.54
Step by Step Solution
- Step 1: Write the proportion equation
18,341,570.40 : 27,447,037.20 = 15,971,445.60 : x - Step 2: Convert to fraction form
18,341,570.40/27,447,037.20 = 15,971,445.60/x - Step 3: Cross multiply
18,341,570.40x = 27,447,037.20 × 15,971,445.60 - Step 4: Simplify right side
18,341,570.40x = 438,368,861,520,976.31 - Step 5: Solve for x
x = 438,368,861,520,976.31/18,341,570.40 - Step 6: Final answer
x = 23,900,290.54
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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.