Finding the Fourth Proportional to 35,438,447.60, 48,915,865.83 and 20,557,532.19
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Solution
The fourth proportional to 35,438,447.60, 48,915,865.83 and 20,557,532.19 is: 28,375,664.14
Step by Step Solution
- Step 1: Write the proportion equation
35,438,447.60 : 48,915,865.83 = 20,557,532.19 : x - Step 2: Convert to fraction form
35,438,447.60/48,915,865.83 = 20,557,532.19/x - Step 3: Cross multiply
35,438,447.60x = 48,915,865.83 × 20,557,532.19 - Step 4: Simplify right side
35,438,447.60x = 1,005,589,486,546,835.25 - Step 5: Solve for x
x = 1,005,589,486,546,835.25/35,438,447.60 - Step 6: Final answer
x = 28,375,664.14
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.