Finding the Fourth Proportional to 212,089,734.09, 292,679,244.77 and 122,785,464.15
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Solution
The fourth proportional to 212,089,734.09, 292,679,244.77 and 122,785,464.15 is: 169,441,284.23
Step by Step Solution
- Step 1: Write the proportion equation
212,089,734.09 : 292,679,244.77 = 122,785,464.15 : x - Step 2: Convert to fraction form
212,089,734.09/292,679,244.77 = 122,785,464.15/x - Step 3: Cross multiply
212,089,734.09x = 292,679,244.77 × 122,785,464.15 - Step 4: Simplify right side
212,089,734.09x = 35,936,756,915,541,984 - Step 5: Solve for x
x = 35,936,756,915,541,984/212,089,734.09 - Step 6: Final answer
x = 169,441,284.23
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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.