Finding the Fourth Proportional to 35,431,515.20, 53,147,272.80 and 19,265,211.20
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Solution
The fourth proportional to 35,431,515.20, 53,147,272.80 and 19,265,211.20 is: 28,897,816.80
Step by Step Solution
- Step 1: Write the proportion equation
35,431,515.20 : 53,147,272.80 = 19,265,211.20 : x - Step 2: Convert to fraction form
35,431,515.20/53,147,272.80 = 19,265,211.20/x - Step 3: Cross multiply
35,431,515.20x = 53,147,272.80 × 19,265,211.20 - Step 4: Simplify right side
35,431,515.20x = 1,023,893,435,196,015.25 - Step 5: Solve for x
x = 1,023,893,435,196,015.25/35,431,515.20 - Step 6: Final answer
x = 28,897,816.80
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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.